[INFO] fetching crate tcli 0.1.4...
[INFO] checking tcli-0.1.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate tcli 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tcli 0.1.4
[INFO] finished tweaking crates.io crate tcli 0.1.4
[INFO] tweaked toml for crates.io crate tcli 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tcli 0.1.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tcli 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 951ff163f1df3e9d67a700539c34705e10761a8790fa2322be6bd0f9a95df916
[INFO] running `Command { std: "docker" "start" "-a" "951ff163f1df3e9d67a700539c34705e10761a8790fa2322be6bd0f9a95df916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "951ff163f1df3e9d67a700539c34705e10761a8790fa2322be6bd0f9a95df916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "951ff163f1df3e9d67a700539c34705e10761a8790fa2322be6bd0f9a95df916", kill_on_drop: false }`
[INFO] [stdout] 951ff163f1df3e9d67a700539c34705e10761a8790fa2322be6bd0f9a95df916
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e794f304439e983ee4bdbe863feb49d5dccde9a93930a49086dcd8cc17619eae
[INFO] running `Command { std: "docker" "start" "-a" "e794f304439e983ee4bdbe863feb49d5dccde9a93930a49086dcd8cc17619eae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling argh_derive v0.1.7
[INFO] [stderr]     Checking argh v0.1.7
[INFO] [stderr]     Checking tcli v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/app.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |             _ => (self.lookback_position),
[INFO] [stdout]    |                  ^                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -             _ => (self.lookback_position),
[INFO] [stdout] 63 +             _ => self.lookback_position,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/app.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |             _ => (self.lookback_position),
[INFO] [stdout]    |                  ^                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -             _ => (self.lookback_position),
[INFO] [stdout] 63 +             _ => self.lookback_position,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "e794f304439e983ee4bdbe863feb49d5dccde9a93930a49086dcd8cc17619eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e794f304439e983ee4bdbe863feb49d5dccde9a93930a49086dcd8cc17619eae", kill_on_drop: false }`
[INFO] [stdout] e794f304439e983ee4bdbe863feb49d5dccde9a93930a49086dcd8cc17619eae