[INFO] fetching crate cargo-node 0.1.0...
[INFO] checking cargo-node-0.1.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate cargo-node 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cargo-node 0.1.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-node 0.1.0
[INFO] finished tweaking crates.io crate cargo-node 0.1.0
[INFO] tweaked toml for crates.io crate cargo-node 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate cargo-node 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sigma v0.1.1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97bb27d814cae33e7294ada942eaf8f8ed602c60e1b8406149b2f9602f7c316e
[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" "97bb27d814cae33e7294ada942eaf8f8ed602c60e1b8406149b2f9602f7c316e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97bb27d814cae33e7294ada942eaf8f8ed602c60e1b8406149b2f9602f7c316e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97bb27d814cae33e7294ada942eaf8f8ed602c60e1b8406149b2f9602f7c316e", kill_on_drop: false }`
[INFO] [stdout] 97bb27d814cae33e7294ada942eaf8f8ed602c60e1b8406149b2f9602f7c316e
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6282b5de7ee6f82c17f852751bc253c29df9142b3fb05a234829a7575c4df11
[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" "c6282b5de7ee6f82c17f852751bc253c29df9142b3fb05a234829a7575c4df11", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking pest v2.1.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking sigma v0.1.1
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking cargo-node v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut mode_path = "debug";
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut mode_path = "debug";
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.68s
[INFO] running `Command { std: "docker" "inspect" "c6282b5de7ee6f82c17f852751bc253c29df9142b3fb05a234829a7575c4df11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6282b5de7ee6f82c17f852751bc253c29df9142b3fb05a234829a7575c4df11", kill_on_drop: false }`
[INFO] [stdout] c6282b5de7ee6f82c17f852751bc253c29df9142b3fb05a234829a7575c4df11