[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#561b5dea1e7e5c21f0fb550ca579229ceb878297 for pr-124661
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fjless" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rohankumardubey/jless on toolchain 561b5dea1e7e5c21f0fb550ca579229ceb878297
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+561b5dea1e7e5c21f0fb550ca579229ceb878297" "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-2-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" "+561b5dea1e7e5c21f0fb550ca579229ceb878297" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking rohankumardubey/jless against try#8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8 for pr-124661
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fjless" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rohankumardubey/jless on toolchain 8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "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-2-tc2/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" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fd-lock v3.0.0
[INFO] [stderr]   Downloaded rustyline v9.0.0
[INFO] [stderr]   Downloaded nix v0.22.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e1760d1259a5bab31917fb78bf57117d68a471d06c5218f2c008b4f01181dbd
[INFO] running `Command { std: "docker" "start" "-a" "7e1760d1259a5bab31917fb78bf57117d68a471d06c5218f2c008b4f01181dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e1760d1259a5bab31917fb78bf57117d68a471d06c5218f2c008b4f01181dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e1760d1259a5bab31917fb78bf57117d68a471d06c5218f2c008b4f01181dbd", kill_on_drop: false }`
[INFO] [stdout] 7e1760d1259a5bab31917fb78bf57117d68a471d06c5218f2c008b4f01181dbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b635cf6e77d6d3e03de706db481c90f1c1761974165bd066c5a61a1679dee10
[INFO] running `Command { std: "docker" "start" "-a" "5b635cf6e77d6d3e03de706db481c90f1c1761974165bd066c5a61a1679dee10", 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 bitflags v1.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[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]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling logos-derive v0.12.0
[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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.02s
[INFO] running `Command { std: "docker" "inspect" "5b635cf6e77d6d3e03de706db481c90f1c1761974165bd066c5a61a1679dee10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b635cf6e77d6d3e03de706db481c90f1c1761974165bd066c5a61a1679dee10", kill_on_drop: false }`
[INFO] [stdout] 5b635cf6e77d6d3e03de706db481c90f1c1761974165bd066c5a61a1679dee10