[INFO] fetching crate v9 0.1.41...
[INFO] checking v9-0.1.41 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate v9 0.1.41 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate v9 0.1.41 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate v9 0.1.41
[INFO] finished tweaking crates.io crate v9 0.1.41
[INFO] tweaked toml for crates.io crate v9 0.1.41 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate v9 0.1.41 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.92
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.5
[INFO] [stderr]   Downloaded syn v0.15.33
[INFO] [stderr]   Downloaded v9-attr v0.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.92
[INFO] [stderr]   Downloaded paste-impl v0.1.5
[INFO] [stderr]   Downloaded paste v0.1.5
[INFO] [stderr]   Downloaded proc-macro2 v0.4.29
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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] 94c8ffbf4e78f3b28e6bd4dd94ebc3beb52653f1c007aad6c88bee9b61372215
[INFO] running `Command { std: "docker" "start" "-a" "94c8ffbf4e78f3b28e6bd4dd94ebc3beb52653f1c007aad6c88bee9b61372215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94c8ffbf4e78f3b28e6bd4dd94ebc3beb52653f1c007aad6c88bee9b61372215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c8ffbf4e78f3b28e6bd4dd94ebc3beb52653f1c007aad6c88bee9b61372215", kill_on_drop: false }`
[INFO] [stdout] 94c8ffbf4e78f3b28e6bd4dd94ebc3beb52653f1c007aad6c88bee9b61372215
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4de37513ed1367155eba79f81fc7f97c6e003b74ea5bc220d7d0aeeb81f9bd22
[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" "4de37513ed1367155eba79f81fc7f97c6e003b74ea5bc220d7d0aeeb81f9bd22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling v9-attr v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]     Checking getrandom v0.1.7
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling proc-macro-hack v0.5.5
[INFO] [stderr]    Compiling paste-impl v0.1.5
[INFO] [stderr]     Checking paste v0.1.5
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking v9 v0.1.41 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.43s
[INFO] running `Command { std: "docker" "inspect" "4de37513ed1367155eba79f81fc7f97c6e003b74ea5bc220d7d0aeeb81f9bd22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de37513ed1367155eba79f81fc7f97c6e003b74ea5bc220d7d0aeeb81f9bd22", kill_on_drop: false }`
[INFO] [stdout] 4de37513ed1367155eba79f81fc7f97c6e003b74ea5bc220d7d0aeeb81f9bd22