[INFO] fetching crate cargo-toolchain 0.1.0...
[INFO] testing cargo-toolchain-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cargo-toolchain 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate cargo-toolchain 0.1.0 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 crates.io crate cargo-toolchain 0.1.0
[INFO] finished tweaking crates.io crate cargo-toolchain 0.1.0
[INFO] tweaked toml for crates.io crate cargo-toolchain 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate cargo-toolchain 0.1.0 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8b988e0c2dc25f8cd8449eec541d6eef57373b55cc83c36f4e64ef8640fcddff
[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" "8b988e0c2dc25f8cd8449eec541d6eef57373b55cc83c36f4e64ef8640fcddff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b988e0c2dc25f8cd8449eec541d6eef57373b55cc83c36f4e64ef8640fcddff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b988e0c2dc25f8cd8449eec541d6eef57373b55cc83c36f4e64ef8640fcddff", kill_on_drop: false }`
[INFO] [stdout] 8b988e0c2dc25f8cd8449eec541d6eef57373b55cc83c36f4e64ef8640fcddff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5641817f375e95f052d23a3cc68853c41289ec3498550cb40252123884514563
[INFO] running `Command { std: "docker" "start" "-a" "5641817f375e95f052d23a3cc68853c41289ec3498550cb40252123884514563", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling cargo-toolchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `Command { std: "docker" "inspect" "5641817f375e95f052d23a3cc68853c41289ec3498550cb40252123884514563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5641817f375e95f052d23a3cc68853c41289ec3498550cb40252123884514563", kill_on_drop: false }`
[INFO] [stdout] 5641817f375e95f052d23a3cc68853c41289ec3498550cb40252123884514563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 1e79c0c961430febe5125bee3b501ef5727b1d0c558b29490e32bb6f49bfdcc0
[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" "1e79c0c961430febe5125bee3b501ef5727b1d0c558b29490e32bb6f49bfdcc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-toolchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "1e79c0c961430febe5125bee3b501ef5727b1d0c558b29490e32bb6f49bfdcc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e79c0c961430febe5125bee3b501ef5727b1d0c558b29490e32bb6f49bfdcc0", kill_on_drop: false }`
[INFO] [stdout] 1e79c0c961430febe5125bee3b501ef5727b1d0c558b29490e32bb6f49bfdcc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 6b0ba9c1a4d14ffe3c16dacf3c1b97eadd8741fbb423afe9fd61f602d0ccff95
[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" "6b0ba9c1a4d14ffe3c16dacf3c1b97eadd8741fbb423afe9fd61f602d0ccff95", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cargo_toolchain-a3fcf71efdfe5ed4
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cargo_toolchain-b07ece5cb9924445
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]    Doc-tests cargo-toolchain
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - truncate_toolchain (line 64) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b0ba9c1a4d14ffe3c16dacf3c1b97eadd8741fbb423afe9fd61f602d0ccff95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b0ba9c1a4d14ffe3c16dacf3c1b97eadd8741fbb423afe9fd61f602d0ccff95", kill_on_drop: false }`
[INFO] [stdout] 6b0ba9c1a4d14ffe3c16dacf3c1b97eadd8741fbb423afe9fd61f602d0ccff95