[INFO] fetching crate imgcat 0.1.0...
[INFO] testing imgcat-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate imgcat 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate imgcat 0.1.0
[INFO] finished tweaking crates.io crate imgcat 0.1.0
[INFO] tweaked toml for crates.io crate imgcat 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate imgcat 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate imgcat 0.1.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error v0.2.6
[INFO] [stderr]   Downloaded structopt v0.3.5
[INFO] [stderr]   Downloaded structopt-derive v0.3.5
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bc6b5a89278d8b9bdeeda7c3f0df5842a29ee8ba8cc246e54c8a0d6fe6bbe66
[INFO] running `Command { std: "docker" "start" "-a" "1bc6b5a89278d8b9bdeeda7c3f0df5842a29ee8ba8cc246e54c8a0d6fe6bbe66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bc6b5a89278d8b9bdeeda7c3f0df5842a29ee8ba8cc246e54c8a0d6fe6bbe66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc6b5a89278d8b9bdeeda7c3f0df5842a29ee8ba8cc246e54c8a0d6fe6bbe66", kill_on_drop: false }`
[INFO] [stdout] 1bc6b5a89278d8b9bdeeda7c3f0df5842a29ee8ba8cc246e54c8a0d6fe6bbe66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abe096cdfbdf08c0baffb1c0b0a559caa191caca9d8caff43a0d4eebf74247ce
[INFO] running `Command { std: "docker" "start" "-a" "abe096cdfbdf08c0baffb1c0b0a559caa191caca9d8caff43a0d4eebf74247ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]    Compiling structopt v0.3.5
[INFO] [stderr]    Compiling imgcat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `TERM` not defined at compile time
[INFO] [stdout]   --> src/main.rs:47:19
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let is_tmux = env!("TERM").starts_with("screen");
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `std::env::var("TERM")` to read the variable at run time
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imgcat` (bin "imgcat") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "abe096cdfbdf08c0baffb1c0b0a559caa191caca9d8caff43a0d4eebf74247ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abe096cdfbdf08c0baffb1c0b0a559caa191caca9d8caff43a0d4eebf74247ce", kill_on_drop: false }`
[INFO] [stdout] abe096cdfbdf08c0baffb1c0b0a559caa191caca9d8caff43a0d4eebf74247ce