[INFO] fetching crate rtee 0.2.2...
[INFO] checking rtee-0.2.2 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate rtee 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rtee 0.2.2 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtee 0.2.2
[INFO] finished tweaking crates.io crate rtee 0.2.2
[INFO] tweaked toml for crates.io crate rtee 0.2.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rtee 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.4
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded cc v1.0.29
[INFO] [stderr]   Downloaded vec_map v0.8.0
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.37
[INFO] [stderr]   Downloaded atty v0.2.8
[INFO] [stderr]   Downloaded bitflags v1.0.1
[INFO] [stderr]   Downloaded libc v0.2.48
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db97edbe7087dbc73173893d9d79eafea81a4dc03924a446e522ca40030705f4
[INFO] running `Command { std: "docker" "start" "-a" "db97edbe7087dbc73173893d9d79eafea81a4dc03924a446e522ca40030705f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db97edbe7087dbc73173893d9d79eafea81a4dc03924a446e522ca40030705f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db97edbe7087dbc73173893d9d79eafea81a4dc03924a446e522ca40030705f4", kill_on_drop: false }`
[INFO] [stdout] db97edbe7087dbc73173893d9d79eafea81a4dc03924a446e522ca40030705f4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43a530f4231f42172a20dd4a2ef7ab34c37031532642fc68dd2971ed8a55141e
[INFO] running `Command { std: "docker" "start" "-a" "43a530f4231f42172a20dd4a2ef7ab34c37031532642fc68dd2971ed8a55141e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rtee v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:77:60
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     .expect("Failed to flush output line");;
[INFO] [stdout]    |                                                            ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:77:60
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     .expect("Failed to flush output line");;
[INFO] [stdout]    |                                                            ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` 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 3.51s
[INFO] running `Command { std: "docker" "inspect" "43a530f4231f42172a20dd4a2ef7ab34c37031532642fc68dd2971ed8a55141e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43a530f4231f42172a20dd4a2ef7ab34c37031532642fc68dd2971ed8a55141e", kill_on_drop: false }`
[INFO] [stdout] 43a530f4231f42172a20dd4a2ef7ab34c37031532642fc68dd2971ed8a55141e