[INFO] fetching crate from 0.1.4...
[INFO] checking from-0.1.4 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate from 0.1.4 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate from 0.1.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate from 0.1.4
[INFO] tweaked toml for crates.io crate from 0.1.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate from 0.1.4 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded loop-code v0.5.2
[INFO] [stderr]   Downloaded from_proc v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16677e01ada5e59f0c963618092f2ec7550738e4d7129f59c1334d7662164e77
[INFO] running `Command { std: "docker" "start" "-a" "16677e01ada5e59f0c963618092f2ec7550738e4d7129f59c1334d7662164e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16677e01ada5e59f0c963618092f2ec7550738e4d7129f59c1334d7662164e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16677e01ada5e59f0c963618092f2ec7550738e4d7129f59c1334d7662164e77", kill_on_drop: false }`
[INFO] [stdout] 16677e01ada5e59f0c963618092f2ec7550738e4d7129f59c1334d7662164e77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ace14feaff25cae9d4014b5c80c1172b931e7d8af2baf3a2636da8aea79bbee
[INFO] running `Command { std: "docker" "start" "-a" "3ace14feaff25cae9d4014b5c80c1172b931e7d8af2baf3a2636da8aea79bbee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling from_proc v0.1.2
[INFO] [stderr]    Compiling loop-code v0.5.2
[INFO] [stderr]     Checking from v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Err`, `Errs`, `SyntaxErr`, and `ValidationErr`
[INFO] [stdout]   --> src/err/err.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |     use super::{Err, Errs, SyntaxErr, ValidationErr};
[INFO] [stdout]    |                 ^^^  ^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.57s
[INFO] running `Command { std: "docker" "inspect" "3ace14feaff25cae9d4014b5c80c1172b931e7d8af2baf3a2636da8aea79bbee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ace14feaff25cae9d4014b5c80c1172b931e7d8af2baf3a2636da8aea79bbee", kill_on_drop: false }`
[INFO] [stdout] 3ace14feaff25cae9d4014b5c80c1172b931e7d8af2baf3a2636da8aea79bbee