[INFO] fetching crate cranelift-serde 0.73.0...
[INFO] checking cranelift-serde-0.73.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate cranelift-serde 0.73.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate cranelift-serde 0.73.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cranelift-serde 0.73.0
[INFO] finished tweaking crates.io crate cranelift-serde 0.73.0
[INFO] tweaked toml for crates.io crate cranelift-serde 0.73.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate cranelift-serde 0.73.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-reader v0.73.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fe77364bf602cb03fa04c291e3c24cc8adf8b86690fc8038ac0a1dce1c9bc14
[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" "6fe77364bf602cb03fa04c291e3c24cc8adf8b86690fc8038ac0a1dce1c9bc14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe77364bf602cb03fa04c291e3c24cc8adf8b86690fc8038ac0a1dce1c9bc14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe77364bf602cb03fa04c291e3c24cc8adf8b86690fc8038ac0a1dce1c9bc14", kill_on_drop: false }`
[INFO] [stdout] 6fe77364bf602cb03fa04c291e3c24cc8adf8b86690fc8038ac0a1dce1c9bc14
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--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] 141722a69aed85678ba8943abea694af891727d34109c5aab5bc4567d4de04ca
[INFO] running `Command { std: "docker" "start" "-a" "141722a69aed85678ba8943abea694af891727d34109c5aab5bc4567d4de04ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.73.0
[INFO] [stderr]    Compiling cranelift-entity v0.73.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling target-lexicon v0.12.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.73.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling cranelift-codegen v0.73.0
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking cranelift-bforest v0.73.0
[INFO] [stderr]     Checking cranelift-reader v0.73.0
[INFO] [stderr]     Checking cranelift-serde v0.73.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "141722a69aed85678ba8943abea694af891727d34109c5aab5bc4567d4de04ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "141722a69aed85678ba8943abea694af891727d34109c5aab5bc4567d4de04ca", kill_on_drop: false }`
[INFO] [stdout] 141722a69aed85678ba8943abea694af891727d34109c5aab5bc4567d4de04ca