[INFO] fetching crate task_runner 0.0.1...
[INFO] checking task_runner-0.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate task_runner 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate task_runner 0.0.1
[INFO] finished tweaking crates.io crate task_runner 0.0.1
[INFO] tweaked toml for crates.io crate task_runner 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate task_runner 0.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] [stderr]       Adding assert_cmd v0.10.2 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cmd v0.10.2
[INFO] [stderr]   Downloaded escargot v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27ef7d6734fa2552f5692acfca9c478a9dc1ed3b085ecb956a6c4798518de3f2
[INFO] running `Command { std: "docker" "start" "-a" "27ef7d6734fa2552f5692acfca9c478a9dc1ed3b085ecb956a6c4798518de3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27ef7d6734fa2552f5692acfca9c478a9dc1ed3b085ecb956a6c4798518de3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ef7d6734fa2552f5692acfca9c478a9dc1ed3b085ecb956a6c4798518de3f2", kill_on_drop: false }`
[INFO] [stdout] 27ef7d6734fa2552f5692acfca9c478a9dc1ed3b085ecb956a6c4798518de3f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb4df5329ed075307e0197f90c01e605953c802ed2c4248171fbbdf30d5ef750
[INFO] running `Command { std: "docker" "start" "-a" "eb4df5329ed075307e0197f90c01e605953c802ed2c4248171fbbdf30d5ef750", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling escargot v0.3.1
[INFO] [stderr]     Checking predicates-core v1.0.9
[INFO] [stderr]     Checking termtree v0.5.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking predicates-tree v1.0.12
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking task_runner v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking assert_cmd v0.10.2
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> tests/tr.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::Command;  // Run programs
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `assert_cmd::prelude::*`
[INFO] [stdout]  --> tests/tr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use assert_cmd::prelude::*; // Add methods on commands
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.75s
[INFO] running `Command { std: "docker" "inspect" "eb4df5329ed075307e0197f90c01e605953c802ed2c4248171fbbdf30d5ef750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4df5329ed075307e0197f90c01e605953c802ed2c4248171fbbdf30d5ef750", kill_on_drop: false }`
[INFO] [stdout] eb4df5329ed075307e0197f90c01e605953c802ed2c4248171fbbdf30d5ef750