[INFO] fetching crate compress-tools 0.8.0...
[INFO] checking compress-tools-0.8.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate compress-tools 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate compress-tools 0.8.0 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 compress-tools 0.8.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate compress-tools 0.8.0
[INFO] tweaked toml for crates.io crate compress-tools 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate compress-tools 0.8.0 already has a lockfile, it will not be regenerated
[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-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d9c9905c65c6c297c70fb604fc6b11890a38a69027b307b2c7f49b76af5cf20
[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" "4d9c9905c65c6c297c70fb604fc6b11890a38a69027b307b2c7f49b76af5cf20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d9c9905c65c6c297c70fb604fc6b11890a38a69027b307b2c7f49b76af5cf20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9c9905c65c6c297c70fb604fc6b11890a38a69027b307b2c7f49b76af5cf20", kill_on_drop: false }`
[INFO] [stdout] 4d9c9905c65c6c297c70fb604fc6b11890a38a69027b307b2c7f49b76af5cf20
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3f235df0f471f1ae200b364d4681f3c09603497487cf92d989644217a101191
[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" "d3f235df0f471f1ae200b364d4681f3c09603497487cf92d989644217a101191", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking pin-project-lite v0.1.9
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]    Compiling compress-tools v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking futures-lite v1.8.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking nb-connect v1.0.1
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tokio v0.3.0
[INFO] [stderr]     Checking async-io v1.1.5
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-global-executor v1.3.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling derive_more v0.99.10
[INFO] [stderr]     Checking async-std v1.6.5
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.26s
[INFO] running `Command { std: "docker" "inspect" "d3f235df0f471f1ae200b364d4681f3c09603497487cf92d989644217a101191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f235df0f471f1ae200b364d4681f3c09603497487cf92d989644217a101191", kill_on_drop: false }`
[INFO] [stdout] d3f235df0f471f1ae200b364d4681f3c09603497487cf92d989644217a101191