[INFO] fetching crate mechanist 0.1.0...
[INFO] testing mechanist-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate mechanist 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate mechanist 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mechanist 0.1.0
[INFO] finished tweaking crates.io crate mechanist 0.1.0
[INFO] tweaked toml for crates.io crate mechanist 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] 1443cf19a282e4280631f1911de073ffd9f6c7ac624187115eeeca38ff5dfd3f
[INFO] running `Command { std: "docker" "start" "-a" "1443cf19a282e4280631f1911de073ffd9f6c7ac624187115eeeca38ff5dfd3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1443cf19a282e4280631f1911de073ffd9f6c7ac624187115eeeca38ff5dfd3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1443cf19a282e4280631f1911de073ffd9f6c7ac624187115eeeca38ff5dfd3f", kill_on_drop: false }`
[INFO] [stdout] 1443cf19a282e4280631f1911de073ffd9f6c7ac624187115eeeca38ff5dfd3f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 59159a365dc7d34973413707c50eb8005b7387f7d4ffed21ecf2bfbaaa06dc50
[INFO] running `Command { std: "docker" "start" "-a" "59159a365dc7d34973413707c50eb8005b7387f7d4ffed21ecf2bfbaaa06dc50", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling mechanist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.59s
[INFO] running `Command { std: "docker" "inspect" "59159a365dc7d34973413707c50eb8005b7387f7d4ffed21ecf2bfbaaa06dc50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59159a365dc7d34973413707c50eb8005b7387f7d4ffed21ecf2bfbaaa06dc50", kill_on_drop: false }`
[INFO] [stdout] 59159a365dc7d34973413707c50eb8005b7387f7d4ffed21ecf2bfbaaa06dc50
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96f439a1f64ceec87d621da1ca8725dc9b8c98229aafc007cf9e1861dab21ed6
[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" "96f439a1f64ceec87d621da1ca8725dc9b8c98229aafc007cf9e1861dab21ed6", kill_on_drop: false }`
[INFO] [stderr]    Compiling mechanist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/mechanist-f62c665443c0e2cf)
[INFO] running `Command { std: "docker" "inspect" "96f439a1f64ceec87d621da1ca8725dc9b8c98229aafc007cf9e1861dab21ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f439a1f64ceec87d621da1ca8725dc9b8c98229aafc007cf9e1861dab21ed6", kill_on_drop: false }`
[INFO] [stdout] 96f439a1f64ceec87d621da1ca8725dc9b8c98229aafc007cf9e1861dab21ed6
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 74cdc79d6cc86772200555540a1aee1eecd220d2f25148d6e4f39d03bf2b5b50
[INFO] running `Command { std: "docker" "start" "-a" "74cdc79d6cc86772200555540a1aee1eecd220d2f25148d6e4f39d03bf2b5b50", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mechanist-f62c665443c0e2cf)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mechanist
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "74cdc79d6cc86772200555540a1aee1eecd220d2f25148d6e4f39d03bf2b5b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74cdc79d6cc86772200555540a1aee1eecd220d2f25148d6e4f39d03bf2b5b50", kill_on_drop: false }`
[INFO] [stdout] 74cdc79d6cc86772200555540a1aee1eecd220d2f25148d6e4f39d03bf2b5b50