[INFO] cloning repository https://github.com/foolusion/ab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/foolusion/ab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoolusion%2Fab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoolusion%2Fab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7aad89ba5f505a54b7bae5fa1c892e3f6bf3330
[INFO] testing foolusion/ab against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoolusion%2Fab" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/foolusion/ab on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/foolusion/ab
[INFO] finished tweaking git repo https://github.com/foolusion/ab
[INFO] tweaked toml for git repo https://github.com/foolusion/ab written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/foolusion/ab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e9b84d83922ac9d1ab1074d487a2a413e5f3eca55baf451f145bc0ef9041aad
[INFO] running `Command { std: "docker" "start" "-a" "3e9b84d83922ac9d1ab1074d487a2a413e5f3eca55baf451f145bc0ef9041aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e9b84d83922ac9d1ab1074d487a2a413e5f3eca55baf451f145bc0ef9041aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9b84d83922ac9d1ab1074d487a2a413e5f3eca55baf451f145bc0ef9041aad", kill_on_drop: false }`
[INFO] [stdout] 3e9b84d83922ac9d1ab1074d487a2a413e5f3eca55baf451f145bc0ef9041aad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6075b73d6e4ca49c8c7d288aed85d47ce9db782aebf1871e45da95387358f63
[INFO] running `Command { std: "docker" "start" "-a" "c6075b73d6e4ca49c8c7d288aed85d47ce9db782aebf1871e45da95387358f63", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling ab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/main.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     name: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `namespace`
[INFO] [stdout]    --> src/main.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     namespace: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.61s
[INFO] running `Command { std: "docker" "inspect" "c6075b73d6e4ca49c8c7d288aed85d47ce9db782aebf1871e45da95387358f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6075b73d6e4ca49c8c7d288aed85d47ce9db782aebf1871e45da95387358f63", kill_on_drop: false }`
[INFO] [stdout] c6075b73d6e4ca49c8c7d288aed85d47ce9db782aebf1871e45da95387358f63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b88d2a8659c7073b9f20f845d755dfaa0462db0fabb6a8f756dab1c3846373f
[INFO] running `Command { std: "docker" "start" "-a" "4b88d2a8659c7073b9f20f845d755dfaa0462db0fabb6a8f756dab1c3846373f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/main.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     name: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `namespace`
[INFO] [stdout]    --> src/main.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     namespace: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "4b88d2a8659c7073b9f20f845d755dfaa0462db0fabb6a8f756dab1c3846373f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b88d2a8659c7073b9f20f845d755dfaa0462db0fabb6a8f756dab1c3846373f", kill_on_drop: false }`
[INFO] [stdout] 4b88d2a8659c7073b9f20f845d755dfaa0462db0fabb6a8f756dab1c3846373f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 530e7065f46b27562dc9bf7e2ad1b76c91d68dd009850389f08b8ecf4cf94113
[INFO] running `Command { std: "docker" "start" "-a" "530e7065f46b27562dc9bf7e2ad1b76c91d68dd009850389f08b8ecf4cf94113", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> src/main.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     name: &'a str,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `namespace`
[INFO] [stderr]    --> src/main.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     namespace: &'a str,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ab` (bin "ab" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.46s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ab-9eb551442a454342)
[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" "530e7065f46b27562dc9bf7e2ad1b76c91d68dd009850389f08b8ecf4cf94113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530e7065f46b27562dc9bf7e2ad1b76c91d68dd009850389f08b8ecf4cf94113", kill_on_drop: false }`
[INFO] [stdout] 530e7065f46b27562dc9bf7e2ad1b76c91d68dd009850389f08b8ecf4cf94113