[INFO] fetching crate helloxxxxxx 0.1.0...
[INFO] testing helloxxxxxx-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate helloxxxxxx 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate helloxxxxxx 0.1.0
[INFO] finished tweaking crates.io crate helloxxxxxx 0.1.0
[INFO] tweaked toml for crates.io crate helloxxxxxx 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate helloxxxxxx 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate helloxxxxxx 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3432ce1c1f883ae3a416dd47346f97fde340a5ce696da21591e93edcd87e537e
[INFO] running `Command { std: "docker" "start" "-a" "3432ce1c1f883ae3a416dd47346f97fde340a5ce696da21591e93edcd87e537e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3432ce1c1f883ae3a416dd47346f97fde340a5ce696da21591e93edcd87e537e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3432ce1c1f883ae3a416dd47346f97fde340a5ce696da21591e93edcd87e537e", kill_on_drop: false }`
[INFO] [stdout] 3432ce1c1f883ae3a416dd47346f97fde340a5ce696da21591e93edcd87e537e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 97f4abccbfef8ba416e435a7b77fa935faa6dbfda0d9c7cccf7094ca02779dd6
[INFO] running `Command { std: "docker" "start" "-a" "97f4abccbfef8ba416e435a7b77fa935faa6dbfda0d9c7cccf7094ca02779dd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling helloxxxxxx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NewsArticle` is never constructed
[INFO] [stdout]  --> src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct NewsArticle{
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cacher` is never constructed
[INFO] [stdout]    --> src/main.rs:494:8
[INFO] [stdout]     |
[INFO] [stdout] 494 | struct Cacher<T>
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]    --> src/main.rs:504:8
[INFO] [stdout]     |
[INFO] [stdout] 501 | / impl<T> Cacher<T>
[INFO] [stdout] 502 | |     where T : Fn(u32) -> u32
[INFO] [stdout]     | |____________________________- associated items in this implementation
[INFO] [stdout] 503 |   {
[INFO] [stdout] 504 |       fn new(calculation : T) -> Cacher<T>{
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 507 |       fn value(&mut self, args: u32) -> u32{
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_workout` is never used
[INFO] [stdout]    --> src/main.rs:519:4
[INFO] [stdout]     |
[INFO] [stdout] 519 | fn generate_workout(intensity:u32, random_number:u32)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]    --> src/main.rs:547:8
[INFO] [stdout]     |
[INFO] [stdout] 547 | struct Shoe{
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_my_feet` is never used
[INFO] [stdout]    --> src/main.rs:552:4
[INFO] [stdout]     |
[INFO] [stdout] 552 | fn shoes_in_my_feet(shoes : Vec<Shoe>, size : u32) -> Vec<Shoe>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]    --> src/main.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 | struct Counter{
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:580:8
[INFO] [stdout]     |
[INFO] [stdout] 579 | impl Counter {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 580 |     fn new() -> Counter{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 3.20s
[INFO] running `Command { std: "docker" "inspect" "97f4abccbfef8ba416e435a7b77fa935faa6dbfda0d9c7cccf7094ca02779dd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f4abccbfef8ba416e435a7b77fa935faa6dbfda0d9c7cccf7094ca02779dd6", kill_on_drop: false }`
[INFO] [stdout] 97f4abccbfef8ba416e435a7b77fa935faa6dbfda0d9c7cccf7094ca02779dd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a245cdacc3b385a6a765a91ecd20fa2179f4341bda0c931a4a6a1a808a247579
[INFO] running `Command { std: "docker" "start" "-a" "a245cdacc3b385a6a765a91ecd20fa2179f4341bda0c931a4a6a1a808a247579", kill_on_drop: false }`
[INFO] [stdout] warning: struct `NewsArticle` is never constructed
[INFO] [stdout]  --> src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct NewsArticle{
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling helloxxxxxx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NewsArticle` is never constructed
[INFO] [stdout]  --> src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct NewsArticle{
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cacher` is never constructed
[INFO] [stdout]    --> src/main.rs:494:8
[INFO] [stdout]     |
[INFO] [stdout] 494 | struct Cacher<T>
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]    --> src/main.rs:504:8
[INFO] [stdout]     |
[INFO] [stdout] 501 | / impl<T> Cacher<T>
[INFO] [stdout] 502 | |     where T : Fn(u32) -> u32
[INFO] [stdout]     | |____________________________- associated items in this implementation
[INFO] [stdout] 503 |   {
[INFO] [stdout] 504 |       fn new(calculation : T) -> Cacher<T>{
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 507 |       fn value(&mut self, args: u32) -> u32{
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_workout` is never used
[INFO] [stdout]    --> src/main.rs:519:4
[INFO] [stdout]     |
[INFO] [stdout] 519 | fn generate_workout(intensity:u32, random_number:u32)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]    --> src/main.rs:547:8
[INFO] [stdout]     |
[INFO] [stdout] 547 | struct Shoe{
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_my_feet` is never used
[INFO] [stdout]    --> src/main.rs:552:4
[INFO] [stdout]     |
[INFO] [stdout] 552 | fn shoes_in_my_feet(shoes : Vec<Shoe>, size : u32) -> Vec<Shoe>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]    --> src/main.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 | struct Counter{
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:580:8
[INFO] [stdout]     |
[INFO] [stdout] 579 | impl Counter {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 580 |     fn new() -> Counter{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "a245cdacc3b385a6a765a91ecd20fa2179f4341bda0c931a4a6a1a808a247579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a245cdacc3b385a6a765a91ecd20fa2179f4341bda0c931a4a6a1a808a247579", kill_on_drop: false }`
[INFO] [stdout] a245cdacc3b385a6a765a91ecd20fa2179f4341bda0c931a4a6a1a808a247579
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b098e974a6fad217e24d6b0ec752e3c645f976b25ffc75a24ef947330cb49f83
[INFO] running `Command { std: "docker" "start" "-a" "b098e974a6fad217e24d6b0ec752e3c645f976b25ffc75a24ef947330cb49f83", kill_on_drop: false }`
[INFO] [stderr] warning: struct `NewsArticle` is never constructed
[INFO] [stderr]  --> src/lib.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct NewsArticle{
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `helloxxxxxx` (lib) generated 1 warning
[INFO] [stderr] warning: struct `Cacher` is never constructed
[INFO] [stderr]    --> src/main.rs:494:8
[INFO] [stderr]     |
[INFO] [stderr] 494 | struct Cacher<T>
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `value` are never used
[INFO] [stderr]    --> src/main.rs:504:8
[INFO] [stderr]     |
[INFO] [stderr] 501 | / impl<T> Cacher<T>
[INFO] [stderr] 502 | |     where T : Fn(u32) -> u32
[INFO] [stderr]     | |____________________________- associated items in this implementation
[INFO] [stderr] 503 |   {
[INFO] [stderr] 504 |       fn new(calculation : T) -> Cacher<T>{
[INFO] [stderr]     |          ^^^
[INFO] [stderr] ...
[INFO] [stderr] 507 |       fn value(&mut self, args: u32) -> u32{
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `generate_workout` is never used
[INFO] [stderr]    --> src/main.rs:519:4
[INFO] [stderr]     |
[INFO] [stderr] 519 | fn generate_workout(intensity:u32, random_number:u32)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Shoe` is never constructed
[INFO] [stderr]    --> src/main.rs:547:8
[INFO] [stderr]     |
[INFO] [stderr] 547 | struct Shoe{
[INFO] [stderr]     |        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoes_in_my_feet` is never used
[INFO] [stderr]    --> src/main.rs:552:4
[INFO] [stderr]     |
[INFO] [stderr] 552 | fn shoes_in_my_feet(shoes : Vec<Shoe>, size : u32) -> Vec<Shoe>
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Counter` is never constructed
[INFO] [stderr]    --> src/main.rs:576:8
[INFO] [stderr]     |
[INFO] [stderr] 576 | struct Counter{
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/main.rs:580:8
[INFO] [stderr]     |
[INFO] [stderr] 579 | impl Counter {
[INFO] [stderr]     | ------------ associated function in this implementation
[INFO] [stderr] 580 |     fn new() -> Counter{
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `helloxxxxxx` (bin "helloxxxxxx" test) generated 7 warnings
[INFO] [stderr] warning: `helloxxxxxx` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/helloxxxxxx-820707ce979a635e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/helloxxxxxx-54228ba6d6012369)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b098e974a6fad217e24d6b0ec752e3c645f976b25ffc75a24ef947330cb49f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b098e974a6fad217e24d6b0ec752e3c645f976b25ffc75a24ef947330cb49f83", kill_on_drop: false }`
[INFO] [stdout] b098e974a6fad217e24d6b0ec752e3c645f976b25ffc75a24ef947330cb49f83