[INFO] fetching crate simple-log 1.0.1...
[INFO] checking simple-log-1.0.1 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate simple-log 1.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate simple-log 1.0.1 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-log 1.0.1
[INFO] finished tweaking crates.io crate simple-log 1.0.1
[INFO] tweaked toml for crates.io crate simple-log 1.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate simple-log 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c4081159c74bbc7786e0554bc1d3009d8b866679acef9cac8e30c7548df4eff
[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" "1c4081159c74bbc7786e0554bc1d3009d8b866679acef9cac8e30c7548df4eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c4081159c74bbc7786e0554bc1d3009d8b866679acef9cac8e30c7548df4eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4081159c74bbc7786e0554bc1d3009d8b866679acef9cac8e30c7548df4eff", kill_on_drop: false }`
[INFO] [stdout] 1c4081159c74bbc7786e0554bc1d3009d8b866679acef9cac8e30c7548df4eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] 60c45e147a3091bdb85b628a56078cb8028d8f2ac14d7729846b7502e735509e
[INFO] running `Command { std: "docker" "start" "-a" "60c45e147a3091bdb85b628a56078cb8028d8f2ac14d7729846b7502e735509e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking log4rs v0.13.0
[INFO] [stderr]     Checking simple-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.10s
[INFO] running `Command { std: "docker" "inspect" "60c45e147a3091bdb85b628a56078cb8028d8f2ac14d7729846b7502e735509e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60c45e147a3091bdb85b628a56078cb8028d8f2ac14d7729846b7502e735509e", kill_on_drop: false }`
[INFO] [stdout] 60c45e147a3091bdb85b628a56078cb8028d8f2ac14d7729846b7502e735509e