[INFO] fetching crate pitchfork 0.0.1...
[INFO] checking pitchfork-0.0.1 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate pitchfork 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pitchfork 0.0.1 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pitchfork 0.0.1
[INFO] finished tweaking crates.io crate pitchfork 0.0.1
[INFO] tweaked toml for crates.io crate pitchfork 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32ecd6a1c037292da76a20c326fbf6f99dd8237177702b8883ad495f89eed7e7
[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" "32ecd6a1c037292da76a20c326fbf6f99dd8237177702b8883ad495f89eed7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32ecd6a1c037292da76a20c326fbf6f99dd8237177702b8883ad495f89eed7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ecd6a1c037292da76a20c326fbf6f99dd8237177702b8883ad495f89eed7e7", kill_on_drop: false }`
[INFO] [stdout] 32ecd6a1c037292da76a20c326fbf6f99dd8237177702b8883ad495f89eed7e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0ef7a11c93741f0c5e0fc96c4ae5f329f74973ccc1676897a4306815a3f0da1
[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" "b0ef7a11c93741f0c5e0fc96c4ae5f329f74973ccc1676897a4306815a3f0da1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking zeroize v0.9.3
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking canonical-path v2.0.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking secrecy v0.2.2
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling gumdrop_derive v0.6.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]     Checking gumdrop v0.6.0
[INFO] [stderr]    Compiling abscissa_derive v0.3.0
[INFO] [stderr]     Checking abscissa_core v0.3.0
[INFO] [stderr]     Checking pitchfork v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.27s
[INFO] running `Command { std: "docker" "inspect" "b0ef7a11c93741f0c5e0fc96c4ae5f329f74973ccc1676897a4306815a3f0da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ef7a11c93741f0c5e0fc96c4ae5f329f74973ccc1676897a4306815a3f0da1", kill_on_drop: false }`
[INFO] [stdout] b0ef7a11c93741f0c5e0fc96c4ae5f329f74973ccc1676897a4306815a3f0da1