[INFO] cloning repository https://github.com/powpow58/doing_math_in_python_exercises_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/powpow58/doing_math_in_python_exercises_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpowpow58%2Fdoing_math_in_python_exercises_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpowpow58%2Fdoing_math_in_python_exercises_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9dae087100883e90a17119e151b8feef6b9b1990
[INFO] testing powpow58/doing_math_in_python_exercises_in_rust against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpowpow58%2Fdoing_math_in_python_exercises_in_rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/powpow58/doing_math_in_python_exercises_in_rust on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/powpow58/doing_math_in_python_exercises_in_rust
[INFO] finished tweaking git repo https://github.com/powpow58/doing_math_in_python_exercises_in_rust
[INFO] tweaked toml for git repo https://github.com/powpow58/doing_math_in_python_exercises_in_rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/powpow58/doing_math_in_python_exercises_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.72
[INFO] [stderr]   Downloaded ryu v1.0.6
[INFO] [stderr]   Downloaded libc v0.2.109
[INFO] [stderr]   Downloaded plotly v0.6.0
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c0812ccc28e7859063122ffb1af700bd8ea615c4e0fc4044ab0be962b1eaac0
[INFO] running `Command { std: "docker" "start" "-a" "7c0812ccc28e7859063122ffb1af700bd8ea615c4e0fc4044ab0be962b1eaac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c0812ccc28e7859063122ffb1af700bd8ea615c4e0fc4044ab0be962b1eaac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0812ccc28e7859063122ffb1af700bd8ea615c4e0fc4044ab0be962b1eaac0", kill_on_drop: false }`
[INFO] [stdout] 7c0812ccc28e7859063122ffb1af700bd8ea615c4e0fc4044ab0be962b1eaac0
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84f88d09533ad38156633108476a8349d0f2b6f725ad44c3b86f78e9b5178cce
[INFO] running `Command { std: "docker" "start" "-a" "84f88d09533ad38156633108476a8349d0f2b6f725ad44c3b86f78e9b5178cce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling syn v1.0.82
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[INFO] [stderr]    Compiling serde v1.0.130
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[INFO] [stderr]    Compiling humansize v1.1.1
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[INFO] [stderr]    Compiling serde_derive v1.0.130
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[INFO] [stderr]    Compiling doing_math_in_python_exercises_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.57s
[INFO] running `Command { std: "docker" "inspect" "84f88d09533ad38156633108476a8349d0f2b6f725ad44c3b86f78e9b5178cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f88d09533ad38156633108476a8349d0f2b6f725ad44c3b86f78e9b5178cce", kill_on_drop: false }`
[INFO] [stdout] 84f88d09533ad38156633108476a8349d0f2b6f725ad44c3b86f78e9b5178cce
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e67946ed84d1ddb7c38ab4122dd3c082ed8a33e38f7621bb419b77aab4814ee
[INFO] running `Command { std: "docker" "start" "-a" "8e67946ed84d1ddb7c38ab4122dd3c082ed8a33e38f7621bb419b77aab4814ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling doing_math_in_python_exercises_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "8e67946ed84d1ddb7c38ab4122dd3c082ed8a33e38f7621bb419b77aab4814ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e67946ed84d1ddb7c38ab4122dd3c082ed8a33e38f7621bb419b77aab4814ee", kill_on_drop: false }`
[INFO] [stdout] 8e67946ed84d1ddb7c38ab4122dd3c082ed8a33e38f7621bb419b77aab4814ee
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d7a6ee5c2cf908b537e425f0e287cbc3c126f822b7e7d0ccd33c19d32106888
[INFO] running `Command { std: "docker" "start" "-a" "4d7a6ee5c2cf908b537e425f0e287cbc3c126f822b7e7d0ccd33c19d32106888", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "4d7a6ee5c2cf908b537e425f0e287cbc3c126f822b7e7d0ccd33c19d32106888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7a6ee5c2cf908b537e425f0e287cbc3c126f822b7e7d0ccd33c19d32106888", kill_on_drop: false }`
[INFO] [stdout] 4d7a6ee5c2cf908b537e425f0e287cbc3c126f822b7e7d0ccd33c19d32106888