[INFO] fetching crate preserves 0.12.0...
[INFO] checking preserves-0.12.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate preserves 0.12.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate preserves 0.12.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preserves 0.12.0
[INFO] finished tweaking crates.io crate preserves 0.12.0
[INFO] tweaked toml for crates.io crate preserves 0.12.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate preserves 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c64caab940bcf252a2d01e35212e614d7a33be11d24dd631d92a3b4b628562d
[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" "3c64caab940bcf252a2d01e35212e614d7a33be11d24dd631d92a3b4b628562d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c64caab940bcf252a2d01e35212e614d7a33be11d24dd631d92a3b4b628562d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c64caab940bcf252a2d01e35212e614d7a33be11d24dd631d92a3b4b628562d", kill_on_drop: false }`
[INFO] [stdout] 3c64caab940bcf252a2d01e35212e614d7a33be11d24dd631d92a3b4b628562d
[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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e65671468439015a530fda9203497901eb5bae94d4f7c40ff3b7eccfca2898c7
[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" "e65671468439015a530fda9203497901eb5bae94d4f7c40ff3b7eccfca2898c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking regex v1.4.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking serde v1.0.124
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking preserves v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.67s
[INFO] running `Command { std: "docker" "inspect" "e65671468439015a530fda9203497901eb5bae94d4f7c40ff3b7eccfca2898c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e65671468439015a530fda9203497901eb5bae94d4f7c40ff3b7eccfca2898c7", kill_on_drop: false }`
[INFO] [stdout] e65671468439015a530fda9203497901eb5bae94d4f7c40ff3b7eccfca2898c7