[INFO] cloning repository https://github.com/rohankumardubey/jless
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rohankumardubey/jless" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fjless", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fjless'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 619f74697d1c0277b07d685bcd061262010485f2
[INFO] checking rohankumardubey/jless against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fjless" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rohankumardubey/jless on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rohankumardubey/jless
[INFO] finished tweaking git repo https://github.com/rohankumardubey/jless
[INFO] tweaked toml for git repo https://github.com/rohankumardubey/jless written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rohankumardubey/jless 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.22.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 124eca9e487320a0d25b47c67e84807f44219d16e6d90092216d3cfdde25ba85
[INFO] running `Command { std: "docker" "start" "-a" "124eca9e487320a0d25b47c67e84807f44219d16e6d90092216d3cfdde25ba85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124eca9e487320a0d25b47c67e84807f44219d16e6d90092216d3cfdde25ba85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124eca9e487320a0d25b47c67e84807f44219d16e6d90092216d3cfdde25ba85", kill_on_drop: false }`
[INFO] [stdout] 124eca9e487320a0d25b47c67e84807f44219d16e6d90092216d3cfdde25ba85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40b5e12d8b144d9b7a63e52e7f209ecaa9dc1d5473b0a2cb46ba034f49413dbe
[INFO] running `Command { std: "docker" "start" "-a" "40b5e12d8b144d9b7a63e52e7f209ecaa9dc1d5473b0a2cb46ba034f49413dbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking rustyline v9.0.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking jless v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `terminal` is imported redundantly
[INFO] [stdout]     --> src/lineprinter.rs:1032:9
[INFO] [stdout]      |
[INFO] [stdout] 1032 |     use crate::terminal;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1035 |     use super::*;
[INFO] [stdout]      |         -------- the item `terminal` is already imported here
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `available_space` is never read
[INFO] [stdout]    --> src/lineprinter.rs:764:17
[INFO] [stdout]     |
[INFO] [stdout] 764 |                 available_space -= 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLACK` is never used
[INFO] [stdout]   --> src/terminal.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const BLACK: Color = Color::C16(0);
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `output` and `clear_output` are never used
[INFO] [stdout]   --> src/terminal.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub trait Terminal: Write {
[INFO] [stdout]    |           -------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn output(&self) -> &str;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn clear_output(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `available_space` is never read
[INFO] [stdout]    --> src/lineprinter.rs:764:17
[INFO] [stdout]     |
[INFO] [stdout] 764 |                 available_space -= 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.77s
[INFO] running `Command { std: "docker" "inspect" "40b5e12d8b144d9b7a63e52e7f209ecaa9dc1d5473b0a2cb46ba034f49413dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b5e12d8b144d9b7a63e52e7f209ecaa9dc1d5473b0a2cb46ba034f49413dbe", kill_on_drop: false }`
[INFO] [stdout] 40b5e12d8b144d9b7a63e52e7f209ecaa9dc1d5473b0a2cb46ba034f49413dbe