[INFO] cloning repository https://github.com/ferrite-rs/ferrite-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ferrite-rs/ferrite-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrite-rs%2Fferrite-tutorial", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a84f78984c4130a657ff7cbcae51e86e32764446
[INFO] testing ferrite-rs/ferrite-tutorial against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrite-rs%2Fferrite-tutorial" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ferrite-rs/ferrite-tutorial on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ferrite-rs/ferrite-tutorial
[INFO] finished tweaking git repo https://github.com/ferrite-rs/ferrite-tutorial
[INFO] tweaked toml for git repo https://github.com/ferrite-rs/ferrite-tutorial written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ferrite-rs/ferrite-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ipc-channel v0.15.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adc54e853c0cb389361f171949df4aa8ac6203aeb32dae4840cb1bc2329b08ee
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[INFO] running `Command { std: "docker" "inspect" "adc54e853c0cb389361f171949df4aa8ac6203aeb32dae4840cb1bc2329b08ee", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c42d8fb521f9bcbc0a2b6c7a5b030ea457155bc49ac3a4682331ed074286a58
[INFO] running `Command { std: "docker" "start" "-a" "2c42d8fb521f9bcbc0a2b6c7a5b030ea457155bc49ac3a4682331ed074286a58", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling termcolor v1.1.2
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[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot v0.11.1
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[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
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[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
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[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling bincode v1.3.3
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[INFO] [stderr]    Compiling ferrite-session v0.2.0
[INFO] [stderr]    Compiling ferrite-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/bin/10_dining_philosophers.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::sleep`
[INFO] [stdout]   --> src/bin/10_dining_philosophers.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | use tokio::time::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/bin/10_dining_philosophers.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn fork(id: u8) -> SharedSession<Fork> {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/bin/10_dining_philosophers.rs:78:3
[INFO] [stdout]    |
[INFO] [stdout] 78 |   id: u8,
[INFO] [stdout]    |   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/bin/10_dining_philosophers.rs:79:3
[INFO] [stdout]    |
[INFO] [stdout] 79 |   left: SharedChannel<Fork>,
[INFO] [stdout]    |   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/bin/10_dining_philosophers.rs:80:3
[INFO] [stdout]    |
[INFO] [stdout] 80 |   right: SharedChannel<Fork>,
[INFO] [stdout]    |   ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nickel2`
[INFO] [stdout]   --> src/bin/03_coin_exchange.rs:89:47
[INFO] [stdout]    |
[INFO] [stdout] 89 |         include_session(forge_nickel(), move |nickel2| {
[INFO] [stdout]    |                                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nickel2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nickel1`
[INFO] [stdout]   --> src/bin/03_coin_exchange.rs:88:45
[INFO] [stdout]    |
[INFO] [stdout] 88 |       include_session(forge_nickel(), move |nickel1| {
[INFO] [stdout]    |                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nickel1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vending_machine`
[INFO] [stdout]   --> src/bin/03_coin_exchange.rs:87:46
[INFO] [stdout]    |
[INFO] [stdout] 87 |     include_session(vending_machine(), move |vending_machine| {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vending_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coin_exchange`
[INFO] [stdout]   --> src/bin/03_coin_exchange.rs:86:42
[INFO] [stdout]    |
[INFO] [stdout] 86 |   include_session(coin_exchange(), move |coin_exchange| {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coin_exchange`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Adder`
[INFO] [stdout]   --> src/bin/02_adder.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / type Adder =
[INFO] [stdout] 22 | |   ReceiveValue<i32, ReceiveValue<i32, SendValue<i32, End>>>;
[INFO] [stdout]    | |____________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `adder_provider`
[INFO] [stdout]   --> src/bin/02_adder.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn adder_provider() -> Session<Adder> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `adder_client`
[INFO] [stdout]   --> src/bin/02_adder.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn adder_client() -> Session<ReceiveChannel<Adder, End>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/bin/08_queue.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn elem(val: String) -> Session<ReceiveChannel<Queue, Queue>>
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/bin/04_simple_calculator.rs:37:50
[INFO] [stdout]    |
[INFO] [stdout] 37 |     include_session(calculator_provider(), move |c2| {
[INFO] [stdout]    |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/bin/04_simple_calculator.rs:36:48
[INFO] [stdout]    |
[INFO] [stdout] 36 |   include_session(calculator_provider(), move |c1| {
[INFO] [stdout]    |                                                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual_pin`
[INFO] [stdout]    --> src/bin/05_simple_atm.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn atm_provider(actual_pin: Pin, balance: u64) -> Session<Atm> {
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual_pin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `balance`
[INFO] [stdout]    --> src/bin/05_simple_atm.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn atm_provider(actual_pin: Pin, balance: u64) -> Session<Atm> {
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_balance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pin`
[INFO] [stdout]    --> src/bin/05_simple_atm.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 114 |   pin: Pin,
[INFO] [stdout]     |   ^^^ help: if this is intentional, prefix it with an underscore: `_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `withdraw_amount`
[INFO] [stdout]    --> src/bin/05_simple_atm.rs:115:3
[INFO] [stdout]     |
[INFO] [stdout] 115 |   withdraw_amount: CashAmount,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_withdraw_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `elem`
[INFO] [stdout]   --> src/bin/08_queue.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn elem(val: String) -> Session<ReceiveChannel<Queue, Queue>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual_pin`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:150:3
[INFO] [stdout]     |
[INFO] [stdout] 150 |   actual_pin: Pin,
[INFO] [stdout]     |   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual_pin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attempts`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:151:3
[INFO] [stdout]     |
[INFO] [stdout] 151 |   attempts: u8,
[INFO] [stdout]     |   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attempts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `balance`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:152:3
[INFO] [stdout]     |
[INFO] [stdout] 152 |   balance: u64,
[INFO] [stdout]     |   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_balance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pin`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:158:3
[INFO] [stdout]     |
[INFO] [stdout] 158 |   pin: Pin,
[INFO] [stdout]     |   ^^^ help: if this is intentional, prefix it with an underscore: `_pin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `withdraw_amount`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:159:3
[INFO] [stdout]     |
[INFO] [stdout] 159 |   withdraw_amount: CashAmount,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_withdraw_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amount`
[INFO] [stdout]   --> src/bin/05_simple_atm.rs:86:3
[INFO] [stdout]    |
[INFO] [stdout] 86 |   amount: CashAmount,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `forge_cash`
[INFO] [stdout]   --> src/bin/05_simple_atm.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn forge_cash(amount: u64) -> Session<Cash> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spend_cash`
[INFO] [stdout]    --> src/bin/05_simple_atm.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn spend_cash() -> Session<ReceiveChannel<Cash, End>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_RETRY`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:109:1
[INFO] [stdout]     |
[INFO] [stdout] 109 | const MAX_RETRY: u8 = 3;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amount`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:126:3
[INFO] [stdout]     |
[INFO] [stdout] 126 |   amount: CashAmount,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `forge_cash`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn forge_cash(amount: u64) -> Session<Cash> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spend_cash`
[INFO] [stdout]    --> src/bin/07_rec_atm.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn spend_cash() -> Session<ReceiveChannel<Cash, End>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val1`
[INFO] [stdout]   --> src/bin/09_shared_queue.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 73 |   val1: String,
[INFO] [stdout]    |   ^^^^ help: if this is intentional, prefix it with an underscore: `_val1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tail`
[INFO] [stdout]   --> src/bin/09_shared_queue.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |   tail: SharedChannel<Queue>,
[INFO] [stdout]    |   ^^^^ help: if this is intentional, prefix it with an underscore: `_tail`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `queue`
[INFO] [stdout]   --> src/bin/09_shared_queue.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 |   queue: SharedChannel<Queue>,
[INFO] [stdout]    |   ^^^^^ help: if this is intentional, prefix it with an underscore: `_queue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current`
[INFO] [stdout]   --> src/bin/06_rec_calculator.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn calculator_provider(current: f64) -> Session<Calculator> {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/bin/09_shared_queue.rs:82:3
[INFO] [stdout]    |
[INFO] [stdout] 82 |   val: String
[INFO] [stdout]    |   ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `queue`
[INFO] [stdout]   --> src/bin/09_shared_queue.rs:89:3
[INFO] [stdout]    |
[INFO] [stdout] 89 |   queue: SharedChannel<Queue>,
[INFO] [stdout]    |   ^^^^^ help: if this is intentional, prefix it with an underscore: `_queue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/bin/06_rec_calculator.rs:66:3
[INFO] [stdout]    |
[INFO] [stdout] 66 |   x: f64,
[INFO] [stdout]    |   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/bin/06_rec_calculator.rs:67:3
[INFO] [stdout]    |
[INFO] [stdout] 67 |   y: f64,
[INFO] [stdout]    |   ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/bin/06_rec_calculator.rs:68:3
[INFO] [stdout]    |
[INFO] [stdout] 68 |   z: f64,
[INFO] [stdout]    |   ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `head_queue`
[INFO] [stdout]   --> src/bin/09_shared_queue.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn head_queue(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferrite-tutorial`; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name 03_coin_exchange --edition=2018 src/bin/03_coin_exchange.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=00d0d8b5fe95b2a6 -C extra-filename=-00d0d8b5fe95b2a6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-90b326c5fcf2b13f.rlib --extern ferrite_session=/opt/rustwide/target/debug/deps/libferrite_session-86ae6d2624d419ab.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-eb5aa15c01a6a9ae.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-4d188680633d19f4.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.04_simple_calculator.a6122b3e-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6.1eocqsodvso5c38v.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libenv_logger-90b326c5fcf2b13f.rlib" "/opt/rustwide/target/debug/deps/libatty-6b6e3ed57360d084.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-b792ab1f217da8de.rlib" "/opt/rustwide/target/debug/deps/libhumantime-0f10f859de6db1c9.rlib" "/opt/rustwide/target/debug/deps/libregex-dea00c8438965ce8.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-c06249dde8ea3988.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-6b182b6aadc2d3ca.rlib" "/opt/rustwide/target/debug/deps/libferrite_session-86ae6d2624d419ab.rlib" "/opt/rustwide/target/debug/deps/libtokio-4d188680633d19f4.rlib" "/opt/rustwide/target/debug/deps/libsignal_hook_registry-b9ddc6621583abb9.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-a26b813591d25225.rlib" "/opt/rustwide/target/debug/deps/libmemchr-9a25ecfc3255644e.rlib" "/opt/rustwide/target/debug/deps/libonce_cell-e99f5123a4d13cec.rlib" "/opt/rustwide/target/debug/deps/libbytes-4bf2b520dc5a4ca8.rlib" "/opt/rustwide/target/debug/deps/libmio-b552f047dad0309b.rlib" "/opt/rustwide/target/debug/deps/libpin_project_lite-02afd1264e6aaadb.rlib" "/opt/rustwide/target/debug/deps/libparking_lot-f0b9ac71964bf793.rlib" "/opt/rustwide/target/debug/deps/libparking_lot_core-cc903c498df60cbe.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-7aff3213d137eb8f.rlib" "/opt/rustwide/target/debug/deps/liblock_api-22ab19da78030059.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-93870536328d7ed1.rlib" "/opt/rustwide/target/debug/deps/libinstant-8d6a6a7ec43a25dc.rlib" "/opt/rustwide/target/debug/deps/libipc_channel-a27f946f16b8be61.rlib" "/opt/rustwide/target/debug/deps/libtempfile-426807686ff92a3d.rlib" "/opt/rustwide/target/debug/deps/librand-eb5aa15c01a6a9ae.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-7f06c40d576b3ddd.rlib" "/opt/rustwide/target/debug/deps/librand_core-b828661af524cc94.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-1c0ca87eb720175a.rlib" "/opt/rustwide/target/debug/deps/libremove_dir_all-f3614768685002bb.rlib" "/opt/rustwide/target/debug/deps/librand-a51900954827aace.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-e06575019823ad75.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-588d0e00b70994d5.rlib" "/opt/rustwide/target/debug/deps/librand_core-7159f86115c18888.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-213a4a770256ab39.rlib" "/opt/rustwide/target/debug/deps/libmio-6e096db8eb6e625a.rlib" "/opt/rustwide/target/debug/deps/libslab-ca64799474667b44.rlib" "/opt/rustwide/target/debug/deps/libiovec-b4927cf98c2d1cba.rlib" "/opt/rustwide/target/debug/deps/libnet2-86cdacdd2108fea4.rlib" "/opt/rustwide/target/debug/deps/liblibc-a126366e39ab494d.rlib" "/opt/rustwide/target/debug/deps/libfnv-6d1578eb67bc4123.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-005922909f1c6bac.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-ac57b1221b0d19c0.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-90e53562623ba5ae.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b341606102c7008f.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-77abc38cc38d84d4.rlib" "/opt/rustwide/target/debug/deps/libbincode-20f50504491b6510.rlib" "/opt/rustwide/target/debug/deps/libserde-9f2d6277b47a32c3.rlib" "/opt/rustwide/target/debug/deps/liblog-82c0db7e24d48d9b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-56df745b5175507b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8d61b92a0a02f53a.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-fc45202bb435016b.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f2400674c7513725.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-605c3a7d1a5d300d.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3d4fb4efa907e4e8.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-65207f030ab23308.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-76ca199cb0186109.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-1e3e01ed4f561dc1.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-dd8dddcba7c13fee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-00b13d31c3420656.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-e4c8460b81557bd5.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-600d46e5f0005455.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e4a08a2585b62d37.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fbc21ec567cb9dc7.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-10b3fa8e49bd978f.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64625b73694ffce7.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-fb6b78ac543a58ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1d1f2d1bec6f51b8.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-acf5ff6e9595d982.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/04_simple_calculator-16a984601860fae6" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: collect2: fatal error: ld terminated with signal 9 [Killed]
[INFO] [stdout]           compilation terminated.
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.02_adder.f2d3402f-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8.1aoiyhmwj07u2str.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libenv_logger-90b326c5fcf2b13f.rlib" "/opt/rustwide/target/debug/deps/libatty-6b6e3ed57360d084.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-b792ab1f217da8de.rlib" "/opt/rustwide/target/debug/deps/libhumantime-0f10f859de6db1c9.rlib" "/opt/rustwide/target/debug/deps/libregex-dea00c8438965ce8.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-c06249dde8ea3988.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-6b182b6aadc2d3ca.rlib" "/opt/rustwide/target/debug/deps/libferrite_session-86ae6d2624d419ab.rlib" "/opt/rustwide/target/debug/deps/libtokio-4d188680633d19f4.rlib" "/opt/rustwide/target/debug/deps/libsignal_hook_registry-b9ddc6621583abb9.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-a26b813591d25225.rlib" "/opt/rustwide/target/debug/deps/libmemchr-9a25ecfc3255644e.rlib" "/opt/rustwide/target/debug/deps/libonce_cell-e99f5123a4d13cec.rlib" "/opt/rustwide/target/debug/deps/libbytes-4bf2b520dc5a4ca8.rlib" "/opt/rustwide/target/debug/deps/libmio-b552f047dad0309b.rlib" "/opt/rustwide/target/debug/deps/libpin_project_lite-02afd1264e6aaadb.rlib" "/opt/rustwide/target/debug/deps/libparking_lot-f0b9ac71964bf793.rlib" "/opt/rustwide/target/debug/deps/libparking_lot_core-cc903c498df60cbe.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-7aff3213d137eb8f.rlib" "/opt/rustwide/target/debug/deps/liblock_api-22ab19da78030059.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-93870536328d7ed1.rlib" "/opt/rustwide/target/debug/deps/libinstant-8d6a6a7ec43a25dc.rlib" "/opt/rustwide/target/debug/deps/libipc_channel-a27f946f16b8be61.rlib" "/opt/rustwide/target/debug/deps/libtempfile-426807686ff92a3d.rlib" "/opt/rustwide/target/debug/deps/librand-eb5aa15c01a6a9ae.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-7f06c40d576b3ddd.rlib" "/opt/rustwide/target/debug/deps/librand_core-b828661af524cc94.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-1c0ca87eb720175a.rlib" "/opt/rustwide/target/debug/deps/libremove_dir_all-f3614768685002bb.rlib" "/opt/rustwide/target/debug/deps/librand-a51900954827aace.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-e06575019823ad75.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-588d0e00b70994d5.rlib" "/opt/rustwide/target/debug/deps/librand_core-7159f86115c18888.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-213a4a770256ab39.rlib" "/opt/rustwide/target/debug/deps/libmio-6e096db8eb6e625a.rlib" "/opt/rustwide/target/debug/deps/libslab-ca64799474667b44.rlib" "/opt/rustwide/target/debug/deps/libiovec-b4927cf98c2d1cba.rlib" "/opt/rustwide/target/debug/deps/libnet2-86cdacdd2108fea4.rlib" "/opt/rustwide/target/debug/deps/liblibc-a126366e39ab494d.rlib" "/opt/rustwide/target/debug/deps/libfnv-6d1578eb67bc4123.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-005922909f1c6bac.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-ac57b1221b0d19c0.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-90e53562623ba5ae.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b341606102c7008f.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-77abc38cc38d84d4.rlib" "/opt/rustwide/target/debug/deps/libbincode-20f50504491b6510.rlib" "/opt/rustwide/target/debug/deps/libserde-9f2d6277b47a32c3.rlib" "/opt/rustwide/target/debug/deps/liblog-82c0db7e24d48d9b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-56df745b5175507b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8d61b92a0a02f53a.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-fc45202bb435016b.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f2400674c7513725.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-605c3a7d1a5d300d.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3d4fb4efa907e4e8.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-65207f030ab23308.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-76ca199cb0186109.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-1e3e01ed4f561dc1.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-dd8dddcba7c13fee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-00b13d31c3420656.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-e4c8460b81557bd5.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-600d46e5f0005455.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e4a08a2585b62d37.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fbc21ec567cb9dc7.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-10b3fa8e49bd978f.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64625b73694ffce7.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-fb6b78ac543a58ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1d1f2d1bec6f51b8.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-acf5ff6e9595d982.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/02_adder-fcb948a8a2794fb8" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: collect2: fatal error: ld terminated with signal 9 [Killed]
[INFO] [stdout]           compilation terminated.
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.01_greet.2289384e-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92.54bsl627gfzfijwy.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libenv_logger-90b326c5fcf2b13f.rlib" "/opt/rustwide/target/debug/deps/libatty-6b6e3ed57360d084.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-b792ab1f217da8de.rlib" "/opt/rustwide/target/debug/deps/libhumantime-0f10f859de6db1c9.rlib" "/opt/rustwide/target/debug/deps/libregex-dea00c8438965ce8.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-c06249dde8ea3988.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-6b182b6aadc2d3ca.rlib" "/opt/rustwide/target/debug/deps/libferrite_session-86ae6d2624d419ab.rlib" "/opt/rustwide/target/debug/deps/libtokio-4d188680633d19f4.rlib" "/opt/rustwide/target/debug/deps/libsignal_hook_registry-b9ddc6621583abb9.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-a26b813591d25225.rlib" "/opt/rustwide/target/debug/deps/libmemchr-9a25ecfc3255644e.rlib" "/opt/rustwide/target/debug/deps/libonce_cell-e99f5123a4d13cec.rlib" "/opt/rustwide/target/debug/deps/libbytes-4bf2b520dc5a4ca8.rlib" "/opt/rustwide/target/debug/deps/libmio-b552f047dad0309b.rlib" "/opt/rustwide/target/debug/deps/libpin_project_lite-02afd1264e6aaadb.rlib" "/opt/rustwide/target/debug/deps/libparking_lot-f0b9ac71964bf793.rlib" "/opt/rustwide/target/debug/deps/libparking_lot_core-cc903c498df60cbe.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-7aff3213d137eb8f.rlib" "/opt/rustwide/target/debug/deps/liblock_api-22ab19da78030059.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-93870536328d7ed1.rlib" "/opt/rustwide/target/debug/deps/libinstant-8d6a6a7ec43a25dc.rlib" "/opt/rustwide/target/debug/deps/libipc_channel-a27f946f16b8be61.rlib" "/opt/rustwide/target/debug/deps/libtempfile-426807686ff92a3d.rlib" "/opt/rustwide/target/debug/deps/librand-eb5aa15c01a6a9ae.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-7f06c40d576b3ddd.rlib" "/opt/rustwide/target/debug/deps/librand_core-b828661af524cc94.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-1c0ca87eb720175a.rlib" "/opt/rustwide/target/debug/deps/libremove_dir_all-f3614768685002bb.rlib" "/opt/rustwide/target/debug/deps/librand-a51900954827aace.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-e06575019823ad75.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-588d0e00b70994d5.rlib" "/opt/rustwide/target/debug/deps/librand_core-7159f86115c18888.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-213a4a770256ab39.rlib" "/opt/rustwide/target/debug/deps/libmio-6e096db8eb6e625a.rlib" "/opt/rustwide/target/debug/deps/libslab-ca64799474667b44.rlib" "/opt/rustwide/target/debug/deps/libiovec-b4927cf98c2d1cba.rlib" "/opt/rustwide/target/debug/deps/libnet2-86cdacdd2108fea4.rlib" "/opt/rustwide/target/debug/deps/liblibc-a126366e39ab494d.rlib" "/opt/rustwide/target/debug/deps/libfnv-6d1578eb67bc4123.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-005922909f1c6bac.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-ac57b1221b0d19c0.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-90e53562623ba5ae.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b341606102c7008f.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-77abc38cc38d84d4.rlib" "/opt/rustwide/target/debug/deps/libbincode-20f50504491b6510.rlib" "/opt/rustwide/target/debug/deps/libserde-9f2d6277b47a32c3.rlib" "/opt/rustwide/target/debug/deps/liblog-82c0db7e24d48d9b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-56df745b5175507b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8d61b92a0a02f53a.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-fc45202bb435016b.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f2400674c7513725.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-605c3a7d1a5d300d.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3d4fb4efa907e4e8.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-65207f030ab23308.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-76ca199cb0186109.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-1e3e01ed4f561dc1.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-dd8dddcba7c13fee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-00b13d31c3420656.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-e4c8460b81557bd5.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-600d46e5f0005455.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e4a08a2585b62d37.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fbc21ec567cb9dc7.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-10b3fa8e49bd978f.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64625b73694ffce7.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-fb6b78ac543a58ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1d1f2d1bec6f51b8.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-acf5ff6e9595d982.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/01_greet-df2e4e7a8896fe92" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: collect2: fatal error: ld terminated with signal 9 [Killed]
[INFO] [stdout]           compilation terminated.
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2c42d8fb521f9bcbc0a2b6c7a5b030ea457155bc49ac3a4682331ed074286a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c42d8fb521f9bcbc0a2b6c7a5b030ea457155bc49ac3a4682331ed074286a58", kill_on_drop: false }`
[INFO] [stdout] 2c42d8fb521f9bcbc0a2b6c7a5b030ea457155bc49ac3a4682331ed074286a58