[INFO] fetching crate milo 0.0.1...
[INFO] testing milo-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate milo 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate milo 0.0.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate milo 0.0.1
[INFO] finished tweaking crates.io crate milo 0.0.1
[INFO] tweaked toml for crates.io crate milo 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88ed9a5d683af7489fd605c43d898ca6b020e81787cadf511fbe3ad443904aa5
[INFO] running `Command { std: "docker" "start" "-a" "88ed9a5d683af7489fd605c43d898ca6b020e81787cadf511fbe3ad443904aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88ed9a5d683af7489fd605c43d898ca6b020e81787cadf511fbe3ad443904aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ed9a5d683af7489fd605c43d898ca6b020e81787cadf511fbe3ad443904aa5", kill_on_drop: false }`
[INFO] [stdout] 88ed9a5d683af7489fd605c43d898ca6b020e81787cadf511fbe3ad443904aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16ffa5fc6ed5611a5e3469df623eac57645508ddc04d9aaecd69ba23bc3f8115
[INFO] running `Command { std: "docker" "start" "-a" "16ffa5fc6ed5611a5e3469df623eac57645508ddc04d9aaecd69ba23bc3f8115", kill_on_drop: false }`
[INFO] [stderr]    Compiling milo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `ilog`
[INFO] [stdout]  --> src/util.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn ilog(n: isize) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `clamp`
[INFO] [stdout]   --> src/util.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn clamp(lo: isize, x: isize, hi: isize) -> isize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "16ffa5fc6ed5611a5e3469df623eac57645508ddc04d9aaecd69ba23bc3f8115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ffa5fc6ed5611a5e3469df623eac57645508ddc04d9aaecd69ba23bc3f8115", kill_on_drop: false }`
[INFO] [stdout] 16ffa5fc6ed5611a5e3469df623eac57645508ddc04d9aaecd69ba23bc3f8115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef4bf3ebf51ae87a8710ffa9deaa5cbaabb4012f2adbff6b7874949ea3b29aea
[INFO] running `Command { std: "docker" "start" "-a" "ef4bf3ebf51ae87a8710ffa9deaa5cbaabb4012f2adbff6b7874949ea3b29aea", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `ilog`
[INFO] [stdout]  --> src/util.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn ilog(n: isize) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling milo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `clamp`
[INFO] [stdout]   --> src/util.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn clamp(lo: isize, x: isize, hi: isize) -> isize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ilog`
[INFO] [stdout]  --> src/util.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn ilog(n: isize) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `clamp`
[INFO] [stdout]   --> src/util.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn clamp(lo: isize, x: isize, hi: isize) -> isize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "ef4bf3ebf51ae87a8710ffa9deaa5cbaabb4012f2adbff6b7874949ea3b29aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4bf3ebf51ae87a8710ffa9deaa5cbaabb4012f2adbff6b7874949ea3b29aea", kill_on_drop: false }`
[INFO] [stdout] ef4bf3ebf51ae87a8710ffa9deaa5cbaabb4012f2adbff6b7874949ea3b29aea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0e411bcdd1f3d571b3337a167193e5b33e2ccbf11b9643e56bad7692e2674f6f
[INFO] running `Command { std: "docker" "start" "-a" "0e411bcdd1f3d571b3337a167193e5b33e2ccbf11b9643e56bad7692e2674f6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `ilog`
[INFO] [stderr]  --> src/util.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn ilog(n: isize) -> u32 {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `clamp`
[INFO] [stderr]   --> src/util.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn clamp(lo: isize, x: isize, hi: isize) -> isize {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `milo` (lib) generated 2 warnings
[INFO] [stderr] warning: `milo` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/milo-163d02e8d72ceb4c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests milo
[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" "0e411bcdd1f3d571b3337a167193e5b33e2ccbf11b9643e56bad7692e2674f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e411bcdd1f3d571b3337a167193e5b33e2ccbf11b9643e56bad7692e2674f6f", kill_on_drop: false }`
[INFO] [stdout] 0e411bcdd1f3d571b3337a167193e5b33e2ccbf11b9643e56bad7692e2674f6f