[INFO] fetching crate reef 0.0.78...
[INFO] checking reef-0.0.78 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate reef 0.0.78 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate reef 0.0.78 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reef 0.0.78
[INFO] finished tweaking crates.io crate reef 0.0.78
[INFO] tweaked toml for crates.io crate reef 0.0.78 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate reef 0.0.78 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cocoon v0.2.2
[INFO] [stderr]   Downloaded chacha20 v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dabdb1abc80c6b6b2c20b7757efb431cbf9b03c5afe8e59d3f2911b9a7c2f3d
[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" "6dabdb1abc80c6b6b2c20b7757efb431cbf9b03c5afe8e59d3f2911b9a7c2f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dabdb1abc80c6b6b2c20b7757efb431cbf9b03c5afe8e59d3f2911b9a7c2f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dabdb1abc80c6b6b2c20b7757efb431cbf9b03c5afe8e59d3f2911b9a7c2f3d", kill_on_drop: false }`
[INFO] [stdout] 6dabdb1abc80c6b6b2c20b7757efb431cbf9b03c5afe8e59d3f2911b9a7c2f3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6a3038d127cdee2e9e9e6db7407fbb9a96f00d9a40185f54faf107cb8a733cc
[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" "f6a3038d127cdee2e9e9e6db7407fbb9a96f00d9a40185f54faf107cb8a733cc", kill_on_drop: false }`
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.51
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking whoami v0.9.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking poly1305 v0.5.2
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking chacha20 v0.3.4
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking chacha20poly1305 v0.4.1
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking cocoon v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking reef v0.0.78 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Spinner`
[INFO] [stdout]  --> src/command.rs:1:51
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Env, Error, ErrorKind, Paths, Result, Spinner, Status};
[INFO] [stdout]   |                                                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/command.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, info, trace, warn};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait_timeout::ChildExt`
[INFO] [stdout]   --> src/command.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wait_timeout::ChildExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Spinner`
[INFO] [stdout]  --> src/command.rs:1:51
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Env, Error, ErrorKind, Paths, Result, Spinner, Status};
[INFO] [stdout]   |                                                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/command.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, info, trace, warn};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait_timeout::ChildExt`
[INFO] [stdout]   --> src/command.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wait_timeout::ChildExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.71s
[INFO] running `Command { std: "docker" "inspect" "f6a3038d127cdee2e9e9e6db7407fbb9a96f00d9a40185f54faf107cb8a733cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a3038d127cdee2e9e9e6db7407fbb9a96f00d9a40185f54faf107cb8a733cc", kill_on_drop: false }`
[INFO] [stdout] f6a3038d127cdee2e9e9e6db7407fbb9a96f00d9a40185f54faf107cb8a733cc