[INFO] cloning repository https://github.com/ravron/grit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ravron/grit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fravron%2Fgrit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fravron%2Fgrit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88698728e6e0cfc079edcf1af970e0c43664472f
[INFO] checking ravron/grit against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fravron%2Fgrit" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ravron/grit on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ravron/grit
[INFO] finished tweaking git repo https://github.com/ravron/grit
[INFO] tweaked toml for git repo https://github.com/ravron/grit written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ravron/grit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v1.0.3
[INFO] [stderr]   Downloaded unindent v0.1.7
[INFO] [stderr]   Downloaded compress v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 57942a7269b7ec9ed8cdd547ca06c382b05c3d0e4d60013134eac5e6c8c0d4e8
[INFO] running `Command { std: "docker" "start" "-a" "57942a7269b7ec9ed8cdd547ca06c382b05c3d0e4d60013134eac5e6c8c0d4e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57942a7269b7ec9ed8cdd547ca06c382b05c3d0e4d60013134eac5e6c8c0d4e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57942a7269b7ec9ed8cdd547ca06c382b05c3d0e4d60013134eac5e6c8c0d4e8", kill_on_drop: false }`
[INFO] [stdout] 57942a7269b7ec9ed8cdd547ca06c382b05c3d0e4d60013134eac5e6c8c0d4e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfdf8a582ab44b0bf96ce5d8b05bad9ef1fe3d6433a8722f982a13d411cb164b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cfdf8a582ab44b0bf96ce5d8b05bad9ef1fe3d6433a8722f982a13d411cb164b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking compress v0.2.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking grit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/cat_file.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/cat_file.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt`
[INFO] [stdout]  --> src/cat_file.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{env, fmt};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/cat_file.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/cat_file.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt`
[INFO] [stdout]  --> src/cat_file.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{env, fmt};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_hex`
[INFO] [stdout]   --> src/cat_file.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn from_hex(hex_str: impl AsRef<[u8]>) -> Result<Self> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_object_in_objects`
[INFO] [stdout]    --> src/cat_file.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn find_object_in_objects() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_object_in_pack`
[INFO] [stdout]    --> src/cat_file.rs:154:4
[INFO] [stdout]     |
[INFO] [stdout] 154 | fn find_object_in_pack() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_object_in_objects`
[INFO] [stdout]    --> src/cat_file.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn find_object_in_objects() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_object_in_pack`
[INFO] [stdout]    --> src/cat_file.rs:154:4
[INFO] [stdout]     |
[INFO] [stdout] 154 | fn find_object_in_pack() {}
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.31s
[INFO] running `Command { std: "docker" "inspect" "cfdf8a582ab44b0bf96ce5d8b05bad9ef1fe3d6433a8722f982a13d411cb164b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfdf8a582ab44b0bf96ce5d8b05bad9ef1fe3d6433a8722f982a13d411cb164b", kill_on_drop: false }`
[INFO] [stdout] cfdf8a582ab44b0bf96ce5d8b05bad9ef1fe3d6433a8722f982a13d411cb164b