[INFO] fetching crate must-implement-trait 0.1.0...
[INFO] testing must-implement-trait-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate must-implement-trait 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate must-implement-trait 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate must-implement-trait 0.1.0
[INFO] finished tweaking crates.io crate must-implement-trait 0.1.0
[INFO] tweaked toml for crates.io crate must-implement-trait 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate must-implement-trait 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.36
[INFO] [stderr]   Downloaded async-trait v0.1.36
[INFO] [stderr]   Downloaded trybuild v1.0.31
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcf3f6cfad100898e8376c5c48a6a6694d9756ee92df0b063bfecb3ad5c897d6
[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" "dcf3f6cfad100898e8376c5c48a6a6694d9756ee92df0b063bfecb3ad5c897d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcf3f6cfad100898e8376c5c48a6a6694d9756ee92df0b063bfecb3ad5c897d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf3f6cfad100898e8376c5c48a6a6694d9756ee92df0b063bfecb3ad5c897d6", kill_on_drop: false }`
[INFO] [stdout] dcf3f6cfad100898e8376c5c48a6a6694d9756ee92df0b063bfecb3ad5c897d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 728ea6d1d66cdabea776c5718d4a7b7652ebe0914600ba816a51240a16ae1551
[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" "728ea6d1d66cdabea776c5718d4a7b7652ebe0914600ba816a51240a16ae1551", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling must-implement-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.68s
[INFO] running `Command { std: "docker" "inspect" "728ea6d1d66cdabea776c5718d4a7b7652ebe0914600ba816a51240a16ae1551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "728ea6d1d66cdabea776c5718d4a7b7652ebe0914600ba816a51240a16ae1551", kill_on_drop: false }`
[INFO] [stdout] 728ea6d1d66cdabea776c5718d4a7b7652ebe0914600ba816a51240a16ae1551
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9d82ec806bc9b043ca7017e86712e29f72c8f11d6945018c421e3d8c485f61f
[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" "a9d82ec806bc9b043ca7017e86712e29f72c8f11d6945018c421e3d8c485f61f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling trybuild v1.0.31
[INFO] [stderr]    Compiling must-implement-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 33.43s
[INFO] running `Command { std: "docker" "inspect" "a9d82ec806bc9b043ca7017e86712e29f72c8f11d6945018c421e3d8c485f61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d82ec806bc9b043ca7017e86712e29f72c8f11d6945018c421e3d8c485f61f", kill_on_drop: false }`
[INFO] [stdout] a9d82ec806bc9b043ca7017e86712e29f72c8f11d6945018c421e3d8c485f61f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "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] 0ce1416db9bb3471fe50ea8082f8158ddb66560e6ab39b8f645d6b0ccf5a142a
[INFO] running `Command { std: "docker" "start" "-a" "0ce1416db9bb3471fe50ea8082f8158ddb66560e6ab39b8f645d6b0ccf5a142a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/must_implement_trait-a0d8f18e62ff6732
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests must-implement-trait
[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] [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" "0ce1416db9bb3471fe50ea8082f8158ddb66560e6ab39b8f645d6b0ccf5a142a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce1416db9bb3471fe50ea8082f8158ddb66560e6ab39b8f645d6b0ccf5a142a", kill_on_drop: false }`
[INFO] [stdout] 0ce1416db9bb3471fe50ea8082f8158ddb66560e6ab39b8f645d6b0ccf5a142a