[INFO] cloning repository https://github.com/ingalless/rust-book-workthrough
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ingalless/rust-book-workthrough" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fingalless%2Frust-book-workthrough", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fingalless%2Frust-book-workthrough'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b502fc6ee2559718ae1c869bd1f86d71b3250cc4
[INFO] testing ingalless/rust-book-workthrough against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fingalless%2Frust-book-workthrough" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ingalless/rust-book-workthrough on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ingalless/rust-book-workthrough
[INFO] finished tweaking git repo https://github.com/ingalless/rust-book-workthrough
[INFO] tweaked toml for git repo https://github.com/ingalless/rust-book-workthrough written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ingalless/rust-book-workthrough already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c8e0794f6c72b2d9b257d7739d871e37f2a7f042bc18a609ec06461b4dedef0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c8e0794f6c72b2d9b257d7739d871e37f2a7f042bc18a609ec06461b4dedef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c8e0794f6c72b2d9b257d7739d871e37f2a7f042bc18a609ec06461b4dedef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8e0794f6c72b2d9b257d7739d871e37f2a7f042bc18a609ec06461b4dedef0", kill_on_drop: false }`
[INFO] [stdout] 7c8e0794f6c72b2d9b257d7739d871e37f2a7f042bc18a609ec06461b4dedef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fe8bb62206eb1301ba35aad76a11d6995ab09682c5bc4b8664ea574437a1778c
[INFO] running `Command { std: "docker" "start" "-a" "fe8bb62206eb1301ba35aad76a11d6995ab09682c5bc4b8664ea574437a1778c", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "fe8bb62206eb1301ba35aad76a11d6995ab09682c5bc4b8664ea574437a1778c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe8bb62206eb1301ba35aad76a11d6995ab09682c5bc4b8664ea574437a1778c", kill_on_drop: false }`
[INFO] [stdout] fe8bb62206eb1301ba35aad76a11d6995ab09682c5bc4b8664ea574437a1778c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29664b8257ae43bc06122bb433a034dff0da9f7600ea3a96186fe747a23cc377
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "29664b8257ae43bc06122bb433a034dff0da9f7600ea3a96186fe747a23cc377", kill_on_drop: false }`
[INFO] [stderr]    Compiling chapter-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "29664b8257ae43bc06122bb433a034dff0da9f7600ea3a96186fe747a23cc377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29664b8257ae43bc06122bb433a034dff0da9f7600ea3a96186fe747a23cc377", kill_on_drop: false }`
[INFO] [stdout] 29664b8257ae43bc06122bb433a034dff0da9f7600ea3a96186fe747a23cc377
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 61053f109caae26cf13abb9f99c4ee6f77b17f0ee26dd195fcf236f0247a687f
[INFO] running `Command { std: "docker" "start" "-a" "61053f109caae26cf13abb9f99c4ee6f77b17f0ee26dd195fcf236f0247a687f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chapter_3-bf6a1d09896a3891
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test converts_to_celsius ... ok
[INFO] [stdout] test converts_to_farrenheit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "61053f109caae26cf13abb9f99c4ee6f77b17f0ee26dd195fcf236f0247a687f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61053f109caae26cf13abb9f99c4ee6f77b17f0ee26dd195fcf236f0247a687f", kill_on_drop: false }`
[INFO] [stdout] 61053f109caae26cf13abb9f99c4ee6f77b17f0ee26dd195fcf236f0247a687f