[INFO] cloning repository https://github.com/alayers2/rust_cookbook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alayers2/rust_cookbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falayers2%2Frust_cookbook", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falayers2%2Frust_cookbook'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56d64c0b923df64507e17b02cbabfca61e1ef7f9
[INFO] testing alayers2/rust_cookbook against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falayers2%2Frust_cookbook" "/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/alayers2/rust_cookbook 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/alayers2/rust_cookbook
[INFO] finished tweaking git repo https://github.com/alayers2/rust_cookbook
[INFO] tweaked toml for git repo https://github.com/alayers2/rust_cookbook written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/alayers2/rust_cookbook 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-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9419eca91bc3b9d4fce6fedd690022e1a66d1bb695a5c47fb58e942ecfd34d14
[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" "9419eca91bc3b9d4fce6fedd690022e1a66d1bb695a5c47fb58e942ecfd34d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9419eca91bc3b9d4fce6fedd690022e1a66d1bb695a5c47fb58e942ecfd34d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9419eca91bc3b9d4fce6fedd690022e1a66d1bb695a5c47fb58e942ecfd34d14", kill_on_drop: false }`
[INFO] [stdout] 9419eca91bc3b9d4fce6fedd690022e1a66d1bb695a5c47fb58e942ecfd34d14
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5bc3d995ad65ed6f5e4af487350bbf34e243f8e5222b768adafc5b12b6735ed
[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" "f5bc3d995ad65ed6f5e4af487350bbf34e243f8e5222b768adafc5b12b6735ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.8
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.1
[INFO] [stderr]    Compiling rust_cookbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Style`
[INFO] [stdout]  --> src/main.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ansi_term::{Color, Style};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `Command { std: "docker" "inspect" "f5bc3d995ad65ed6f5e4af487350bbf34e243f8e5222b768adafc5b12b6735ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bc3d995ad65ed6f5e4af487350bbf34e243f8e5222b768adafc5b12b6735ed", kill_on_drop: false }`
[INFO] [stdout] f5bc3d995ad65ed6f5e4af487350bbf34e243f8e5222b768adafc5b12b6735ed
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e49761411593cc39e3be41b2cbedeae8d752e8c8e12bd7775b7f7367a801a27f
[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" "e49761411593cc39e3be41b2cbedeae8d752e8c8e12bd7775b7f7367a801a27f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cookbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Style`
[INFO] [stdout]  --> src/main.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ansi_term::{Color, Style};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "e49761411593cc39e3be41b2cbedeae8d752e8c8e12bd7775b7f7367a801a27f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e49761411593cc39e3be41b2cbedeae8d752e8c8e12bd7775b7f7367a801a27f", kill_on_drop: false }`
[INFO] [stdout] e49761411593cc39e3be41b2cbedeae8d752e8c8e12bd7775b7f7367a801a27f
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74df5751180b7b2ae15d04bc716a159b25bcbba04c46b24dae3960ef9ccb7a28
[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" "74df5751180b7b2ae15d04bc716a159b25bcbba04c46b24dae3960ef9ccb7a28", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Style`
[INFO] [stderr]  --> src/main.rs:8:24
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ansi_term::{Color, Style};
[INFO] [stderr]   |                        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_cookbook-113d5efe7a6cd501
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "74df5751180b7b2ae15d04bc716a159b25bcbba04c46b24dae3960ef9ccb7a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74df5751180b7b2ae15d04bc716a159b25bcbba04c46b24dae3960ef9ccb7a28", kill_on_drop: false }`
[INFO] [stdout] 74df5751180b7b2ae15d04bc716a159b25bcbba04c46b24dae3960ef9ccb7a28