[INFO] cloning repository https://github.com/codeandplay/rust_in_action_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codeandplay/rust_in_action_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeandplay%2Frust_in_action_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeandplay%2Frust_in_action_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeb4d1a40dd3445150dec6122f9a2f2011da65ae
[INFO] checking codeandplay/rust_in_action_examples against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeandplay%2Frust_in_action_examples" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codeandplay/rust_in_action_examples on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codeandplay/rust_in_action_examples
[INFO] finished tweaking git repo https://github.com/codeandplay/rust_in_action_examples
[INFO] tweaked toml for git repo https://github.com/codeandplay/rust_in_action_examples written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/codeandplay/rust_in_action_examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eecb7f94f643c842c7134d80803d8be92b60d80cdfe8c495963813c2cee69639
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "eecb7f94f643c842c7134d80803d8be92b60d80cdfe8c495963813c2cee69639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eecb7f94f643c842c7134d80803d8be92b60d80cdfe8c495963813c2cee69639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eecb7f94f643c842c7134d80803d8be92b60d80cdfe8c495963813c2cee69639", kill_on_drop: false }`
[INFO] [stdout] eecb7f94f643c842c7134d80803d8be92b60d80cdfe8c495963813c2cee69639
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df955b2224f0228bdf76d8e346c44f5a11173e7231172d9d17a8001bcc082555
[INFO] running `Command { std: "docker" "start" "-a" "df955b2224f0228bdf76d8e346c44f5a11173e7231172d9d17a8001bcc082555", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0373]: closure may outlive the current function, but it borrows `data`, which is owned by the current function
[INFO] [stdout]  --> src/bin/1_7_data_race.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     thread::spawn(|| {
[INFO] [stdout]   |                   ^^ may outlive borrowed value `data`
[INFO] [stdout] 7 |         data = 500;
[INFO] [stdout]   |         ---- `data` is borrowed here
[INFO] [stdout]   |
[INFO] [stdout] note: function requires argument type to outlive `'static`
[INFO] [stdout]  --> src/bin/1_7_data_race.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     thread::spawn(|| {
[INFO] [stdout] 7 | |         data = 500;
[INFO] [stdout] 8 | |     });
[INFO] [stdout]   | |______^
[INFO] [stdout] help: to force the closure to take ownership of `data` (and any other referenced variables), use the `move` keyword
[INFO] [stdout]   |
[INFO] [stdout] 6 |     thread::spawn(move || {
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `data` as mutable more than once at a time
[INFO] [stdout]   --> src/bin/1_7_data_race.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 6  |       thread::spawn(|| {
[INFO] [stdout]    |       -             -- first mutable borrow occurs here
[INFO] [stdout]    |  _____|
[INFO] [stdout]    | |
[INFO] [stdout] 7  | |         data = 500;
[INFO] [stdout]    | |         ---- first borrow occurs due to use of `data` in closure
[INFO] [stdout] 8  | |     });
[INFO] [stdout]    | |______- argument requires that `data` is borrowed for `'static`
[INFO] [stdout] 9  | 
[INFO] [stdout] 10 |       thread::spawn(|| {
[INFO] [stdout]    |                     ^^ second mutable borrow occurs here
[INFO] [stdout] 11 |           data = 1000;
[INFO] [stdout]    |           ---- second borrow occurs due to use of `data` in closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0373]: closure may outlive the current function, but it borrows `data`, which is owned by the current function
[INFO] [stdout]   --> src/bin/1_7_data_race.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     thread::spawn(|| {
[INFO] [stdout]    |                   ^^ may outlive borrowed value `data`
[INFO] [stdout] 11 |         data = 1000;
[INFO] [stdout]    |         ---- `data` is borrowed here
[INFO] [stdout]    |
[INFO] [stdout] note: function requires argument type to outlive `'static`
[INFO] [stdout]   --> src/bin/1_7_data_race.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     thread::spawn(|| {
[INFO] [stdout] 11 | |         data = 1000;
[INFO] [stdout] 12 | |     });
[INFO] [stdout]    | |______^
[INFO] [stdout] help: to force the closure to take ownership of `data` (and any other referenced variables), use the `move` keyword
[INFO] [stdout]    |
[INFO] [stdout] 10 |     thread::spawn(move || {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `data` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> src/bin/1_7_data_race.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 6  |       thread::spawn(|| {
[INFO] [stdout]    |       -             -- mutable borrow occurs here
[INFO] [stdout]    |  _____|
[INFO] [stdout]    | |
[INFO] [stdout] 7  | |         data = 500;
[INFO] [stdout]    | |         ---- first borrow occurs due to use of `data` in closure
[INFO] [stdout] 8  | |     });
[INFO] [stdout]    | |______- argument requires that `data` is borrowed for `'static`
[INFO] [stdout] ...
[INFO] [stdout] 14 |       println!("{}", data);
[INFO] [stdout]    |                      ^^^^ immutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0373, E0499, E0502.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0373`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `example`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `save_to`
[INFO] [stdout]   --> src/bin/3_19_read_trait.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn read(self: &File, save_to: &mut Vec<u8>) -> Result<usize, String> {
[INFO] [stdout]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_save_to`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_id`
[INFO] [stdout]   --> src/bin/4_21_implement_copy_for_type.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn check_status(sat_id: CubeSat) -> StatusMessage {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_21_implement_copy_for_type.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_21_implement_copy_for_type.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `needle`
[INFO] [stdout]  --> src/bin/2_14_match.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let needle = 42;
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_needle`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_id`
[INFO] [stdout]   --> src/bin/4_20_derive_copy_for_type.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn check_status(sat_id: CubeSat) -> StatusMessage {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_20_derive_copy_for_type.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_20_derive_copy_for_type.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "df955b2224f0228bdf76d8e346c44f5a11173e7231172d9d17a8001bcc082555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df955b2224f0228bdf76d8e346c44f5a11173e7231172d9d17a8001bcc082555", kill_on_drop: false }`
[INFO] [stdout] df955b2224f0228bdf76d8e346c44f5a11173e7231172d9d17a8001bcc082555