[INFO] fetching crate fast_log 1.3.9...
[INFO] checking fast_log-1.3.9 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate fast_log 1.3.9 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate fast_log 1.3.9 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast_log 1.3.9
[INFO] finished tweaking crates.io crate fast_log 1.3.9
[INFO] tweaked toml for crates.io crate fast_log 1.3.9 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a05932ee18378e8d8f66a0afae1f5b42e7fbd97f7335956b0080aecbdf47cc02
[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" "a05932ee18378e8d8f66a0afae1f5b42e7fbd97f7335956b0080aecbdf47cc02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a05932ee18378e8d8f66a0afae1f5b42e7fbd97f7335956b0080aecbdf47cc02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05932ee18378e8d8f66a0afae1f5b42e7fbd97f7335956b0080aecbdf47cc02", kill_on_drop: false }`
[INFO] [stdout] a05932ee18378e8d8f66a0afae1f5b42e7fbd97f7335956b0080aecbdf47cc02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe97da005e02dcca360435de1984ae4d3290a2dddadd30943381e649f0051a81
[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" "fe97da005e02dcca360435de1984ae4d3290a2dddadd30943381e649f0051a81", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking zip v0.5.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking fast_log v1.3.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `e`
[INFO] [stdout]   --> src/error.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn e() -> Result<String, LogError> {
[INFO] [stdout]    |    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.74s
[INFO] running `Command { std: "docker" "inspect" "fe97da005e02dcca360435de1984ae4d3290a2dddadd30943381e649f0051a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe97da005e02dcca360435de1984ae4d3290a2dddadd30943381e649f0051a81", kill_on_drop: false }`
[INFO] [stdout] fe97da005e02dcca360435de1984ae4d3290a2dddadd30943381e649f0051a81