[INFO] fetching crate mod-exp-unsigned 0.1.1...
[INFO] testing mod-exp-unsigned-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mod-exp-unsigned 0.1.1 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate mod-exp-unsigned 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mod-exp-unsigned 0.1.1
[INFO] finished tweaking crates.io crate mod-exp-unsigned 0.1.1
[INFO] tweaked toml for crates.io crate mod-exp-unsigned 0.1.1 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95faa11306800f59c6711f547366e2fd038efdbf5989b73bc3d9df080a2b1512
[INFO] running `Command { std: "docker" "start" "-a" "95faa11306800f59c6711f547366e2fd038efdbf5989b73bc3d9df080a2b1512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95faa11306800f59c6711f547366e2fd038efdbf5989b73bc3d9df080a2b1512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95faa11306800f59c6711f547366e2fd038efdbf5989b73bc3d9df080a2b1512", kill_on_drop: false }`
[INFO] [stdout] 95faa11306800f59c6711f547366e2fd038efdbf5989b73bc3d9df080a2b1512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6281c05847c0dcdb40c3e391f384c1ab6ae4e86cff5b3dafc78e59e7e32a1df1
[INFO] running `Command { std: "docker" "start" "-a" "6281c05847c0dcdb40c3e391f384c1ab6ae4e86cff5b3dafc78e59e7e32a1df1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling mod-exp-unsigned v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.01s
[INFO] running `Command { std: "docker" "inspect" "6281c05847c0dcdb40c3e391f384c1ab6ae4e86cff5b3dafc78e59e7e32a1df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6281c05847c0dcdb40c3e391f384c1ab6ae4e86cff5b3dafc78e59e7e32a1df1", kill_on_drop: false }`
[INFO] [stdout] 6281c05847c0dcdb40c3e391f384c1ab6ae4e86cff5b3dafc78e59e7e32a1df1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab9e42082cc84d7e051805c53b38508d5231bf7d5d9b513f183d77de2c0f9621
[INFO] running `Command { std: "docker" "start" "-a" "ab9e42082cc84d7e051805c53b38508d5231bf7d5d9b513f183d77de2c0f9621", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mod-exp-unsigned v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "ab9e42082cc84d7e051805c53b38508d5231bf7d5d9b513f183d77de2c0f9621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9e42082cc84d7e051805c53b38508d5231bf7d5d9b513f183d77de2c0f9621", kill_on_drop: false }`
[INFO] [stdout] ab9e42082cc84d7e051805c53b38508d5231bf7d5d9b513f183d77de2c0f9621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b31d4b6b4eaab9edb831fa2defaaf2929f21ded9a07b2c2b07868c01f0412445
[INFO] running `Command { std: "docker" "start" "-a" "b31d4b6b4eaab9edb831fa2defaaf2929f21ded9a07b2c2b07868c01f0412445", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mod_exp_unsigned-15ec3f5b16c15818)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests mod-exp-unsigned
[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] [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" "b31d4b6b4eaab9edb831fa2defaaf2929f21ded9a07b2c2b07868c01f0412445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31d4b6b4eaab9edb831fa2defaaf2929f21ded9a07b2c2b07868c01f0412445", kill_on_drop: false }`
[INFO] [stdout] b31d4b6b4eaab9edb831fa2defaaf2929f21ded9a07b2c2b07868c01f0412445