[INFO] fetching crate rust-expression 0.2.0...
[INFO] checking rust-expression-0.2.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate rust-expression 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust-expression 0.2.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-expression 0.2.0
[INFO] finished tweaking crates.io crate rust-expression 0.2.0
[INFO] tweaked toml for crates.io crate rust-expression 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rust-expression 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c27ec28c41c2eb0545e82200b3ecbcd27f360a5cc311288f2f6fe56139ae175
[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" "8c27ec28c41c2eb0545e82200b3ecbcd27f360a5cc311288f2f6fe56139ae175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c27ec28c41c2eb0545e82200b3ecbcd27f360a5cc311288f2f6fe56139ae175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c27ec28c41c2eb0545e82200b3ecbcd27f360a5cc311288f2f6fe56139ae175", kill_on_drop: false }`
[INFO] [stdout] 8c27ec28c41c2eb0545e82200b3ecbcd27f360a5cc311288f2f6fe56139ae175
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8a7c6dca8c94e57ea06124adb172d3baac03981ae1cf02357e9d750c965bc03
[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" "a8a7c6dca8c94e57ea06124adb172d3baac03981ae1cf02357e9d750c965bc03", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking rust-expression v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mortal v0.2.2
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.77s
[INFO] running `Command { std: "docker" "inspect" "a8a7c6dca8c94e57ea06124adb172d3baac03981ae1cf02357e9d750c965bc03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8a7c6dca8c94e57ea06124adb172d3baac03981ae1cf02357e9d750c965bc03", kill_on_drop: false }`
[INFO] [stdout] a8a7c6dca8c94e57ea06124adb172d3baac03981ae1cf02357e9d750c965bc03