[INFO] fetching crate crevsum 0.3.0...
[INFO] checking crevsum-0.3.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate crevsum 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate crevsum 0.3.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crevsum 0.3.0
[INFO] finished tweaking crates.io crate crevsum 0.3.0
[INFO] tweaked toml for crates.io crate crevsum 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03d969b9e474f005d220aa63c0cd609cf3a6d613063297d1932792d7dc692d9c
[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" "03d969b9e474f005d220aa63c0cd609cf3a6d613063297d1932792d7dc692d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03d969b9e474f005d220aa63c0cd609cf3a6d613063297d1932792d7dc692d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d969b9e474f005d220aa63c0cd609cf3a6d613063297d1932792d7dc692d9c", kill_on_drop: false }`
[INFO] [stdout] 03d969b9e474f005d220aa63c0cd609cf3a6d613063297d1932792d7dc692d9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e191c3838a3205bee7936cbc33a3e6987fc04bae104830f98fa4fda434fdc21
[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" "0e191c3838a3205bee7936cbc33a3e6987fc04bae104830f98fa4fda434fdc21", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rpassword v2.1.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking crev-common v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking crev-recursive-digest v0.2.1
[INFO] [stderr]     Checking common_failures v0.1.1
[INFO] [stderr]     Checking crevsum v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.41s
[INFO] running `Command { std: "docker" "inspect" "0e191c3838a3205bee7936cbc33a3e6987fc04bae104830f98fa4fda434fdc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e191c3838a3205bee7936cbc33a3e6987fc04bae104830f98fa4fda434fdc21", kill_on_drop: false }`
[INFO] [stdout] 0e191c3838a3205bee7936cbc33a3e6987fc04bae104830f98fa4fda434fdc21