[INFO] fetching crate learning-trait 0.1.0...
[INFO] testing learning-trait-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate learning-trait 0.1.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate learning-trait 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate learning-trait 0.1.0
[INFO] finished tweaking crates.io crate learning-trait 0.1.0
[INFO] tweaked toml for crates.io crate learning-trait 0.1.0 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98fe1fcbdbf8358d6d51f6dc5e89ed3dbef17e149e02fd246206847ed97b0378
[INFO] running `Command { std: "docker" "start" "-a" "98fe1fcbdbf8358d6d51f6dc5e89ed3dbef17e149e02fd246206847ed97b0378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98fe1fcbdbf8358d6d51f6dc5e89ed3dbef17e149e02fd246206847ed97b0378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98fe1fcbdbf8358d6d51f6dc5e89ed3dbef17e149e02fd246206847ed97b0378", kill_on_drop: false }`
[INFO] [stdout] 98fe1fcbdbf8358d6d51f6dc5e89ed3dbef17e149e02fd246206847ed97b0378
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6322b19d73769896f0867282e9def1246baf07cdc2ff4a82bfb1928f333035b2
[INFO] running `Command { std: "docker" "start" "-a" "6322b19d73769896f0867282e9def1246baf07cdc2ff4a82bfb1928f333035b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learning-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "6322b19d73769896f0867282e9def1246baf07cdc2ff4a82bfb1928f333035b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6322b19d73769896f0867282e9def1246baf07cdc2ff4a82bfb1928f333035b2", kill_on_drop: false }`
[INFO] [stdout] 6322b19d73769896f0867282e9def1246baf07cdc2ff4a82bfb1928f333035b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fe487c4927a26efd75761ccadaa643ffcf16072924e9615845033d58ffd9d39
[INFO] running `Command { std: "docker" "start" "-a" "0fe487c4927a26efd75761ccadaa643ffcf16072924e9615845033d58ffd9d39", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_trait-d3d7b182f4627022)
[INFO] running `Command { std: "docker" "inspect" "0fe487c4927a26efd75761ccadaa643ffcf16072924e9615845033d58ffd9d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe487c4927a26efd75761ccadaa643ffcf16072924e9615845033d58ffd9d39", kill_on_drop: false }`
[INFO] [stdout] 0fe487c4927a26efd75761ccadaa643ffcf16072924e9615845033d58ffd9d39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21cce17c1ad8a00d55657bb16e176db037b192129f0c659201a3a25c60742c9e
[INFO] running `Command { std: "docker" "start" "-a" "21cce17c1ad8a00d55657bb16e176db037b192129f0c659201a3a25c60742c9e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_trait-d3d7b182f4627022)
[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" "21cce17c1ad8a00d55657bb16e176db037b192129f0c659201a3a25c60742c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21cce17c1ad8a00d55657bb16e176db037b192129f0c659201a3a25c60742c9e", kill_on_drop: false }`
[INFO] [stdout] 21cce17c1ad8a00d55657bb16e176db037b192129f0c659201a3a25c60742c9e