[INFO] fetching crate a4 0.0.4...
[INFO] testing a4-0.0.4 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate a4 0.0.4 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate a4 0.0.4 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 a4 0.0.4
[INFO] finished tweaking crates.io crate a4 0.0.4
[INFO] tweaked toml for crates.io crate a4 0.0.4 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate crates.io crate a4 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] ddddae2d77b7cfe22c812ce173e993d246d56ebc0e9b542a85d115169795f5a6
[INFO] running `Command { std: "docker" "start" "-a" "ddddae2d77b7cfe22c812ce173e993d246d56ebc0e9b542a85d115169795f5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddddae2d77b7cfe22c812ce173e993d246d56ebc0e9b542a85d115169795f5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddddae2d77b7cfe22c812ce173e993d246d56ebc0e9b542a85d115169795f5a6", kill_on_drop: false }`
[INFO] [stdout] ddddae2d77b7cfe22c812ce173e993d246d56ebc0e9b542a85d115169795f5a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] c9c768eb234cbe6a0762d998f0cafd4f8d4059980ce5032f8d0786206fe4a086
[INFO] running `Command { std: "docker" "start" "-a" "c9c768eb234cbe6a0762d998f0cafd4f8d4059980ce5032f8d0786206fe4a086", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling heapless v0.7.8
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling rzcobs v0.1.2
[INFO] [stderr]    Compiling rcobs v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling kolben v0.0.3
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling postcard v0.7.2
[INFO] [stderr]    Compiling a4-core v0.0.4
[INFO] [stderr]    Compiling a4 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.44s
[INFO] running `Command { std: "docker" "inspect" "c9c768eb234cbe6a0762d998f0cafd4f8d4059980ce5032f8d0786206fe4a086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c768eb234cbe6a0762d998f0cafd4f8d4059980ce5032f8d0786206fe4a086", kill_on_drop: false }`
[INFO] [stdout] c9c768eb234cbe6a0762d998f0cafd4f8d4059980ce5032f8d0786206fe4a086
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] e4a5dcad3cf8fdd8d0bb56046bf9562fe15a90c97a92186111cac4ecd3b9bc28
[INFO] running `Command { std: "docker" "start" "-a" "e4a5dcad3cf8fdd8d0bb56046bf9562fe15a90c97a92186111cac4ecd3b9bc28", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling a4 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.55s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/a4-798f0ab321bc1ac9)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/a4-0ca13230600fcffa)
[INFO] [stderr]   Executable tests/smoke.rs (/opt/rustwide/target/debug/deps/smoke-3a70499f4227ab20)
[INFO] running `Command { std: "docker" "inspect" "e4a5dcad3cf8fdd8d0bb56046bf9562fe15a90c97a92186111cac4ecd3b9bc28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a5dcad3cf8fdd8d0bb56046bf9562fe15a90c97a92186111cac4ecd3b9bc28", kill_on_drop: false }`
[INFO] [stdout] e4a5dcad3cf8fdd8d0bb56046bf9562fe15a90c97a92186111cac4ecd3b9bc28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 11a492b54d9cdf9bfd72caab3517c83d22b4a31ea2b739308baa5badbc349ff9
[INFO] running `Command { std: "docker" "start" "-a" "11a492b54d9cdf9bfd72caab3517c83d22b4a31ea2b739308baa5badbc349ff9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/a4-798f0ab321bc1ac9)
[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/debug/deps/a4-0ca13230600fcffa)
[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 tests/smoke.rs (/opt/rustwide/target/debug/deps/smoke-3a70499f4227ab20)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test multi_lines ... ok
[INFO] [stdout] test single_lines ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests a4
[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" "11a492b54d9cdf9bfd72caab3517c83d22b4a31ea2b739308baa5badbc349ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a492b54d9cdf9bfd72caab3517c83d22b4a31ea2b739308baa5badbc349ff9", kill_on_drop: false }`
[INFO] [stdout] 11a492b54d9cdf9bfd72caab3517c83d22b4a31ea2b739308baa5badbc349ff9