[INFO] cloning repository https://github.com/alexanderjeurissen/git-hooked
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexanderjeurissen/git-hooked" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderjeurissen%2Fgit-hooked", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderjeurissen%2Fgit-hooked'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe432c895d99e6181750622d3cd31d4dfdc35b67
[INFO] checking alexanderjeurissen/git-hooked/fe432c895d99e6181750622d3cd31d4dfdc35b67 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderjeurissen%2Fgit-hooked" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexanderjeurissen/git-hooked on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexanderjeurissen/git-hooked
[INFO] finished tweaking git repo https://github.com/alexanderjeurissen/git-hooked
[INFO] tweaked toml for git repo https://github.com/alexanderjeurissen/git-hooked written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/alexanderjeurissen/git-hooked 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.4.9
[INFO] [stderr]   Downloaded pretty_env_logger v0.3.1
[INFO] [stderr]   Downloaded miniz_oxide v0.4.0
[INFO] [stderr]   Downloaded structopt v0.3.16
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1fc660c958cae4bf05e6dad1d8a7dd7275a24e1160d69519dee6df0ae116710
[INFO] running `Command { std: "docker" "start" "-a" "f1fc660c958cae4bf05e6dad1d8a7dd7275a24e1160d69519dee6df0ae116710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1fc660c958cae4bf05e6dad1d8a7dd7275a24e1160d69519dee6df0ae116710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1fc660c958cae4bf05e6dad1d8a7dd7275a24e1160d69519dee6df0ae116710", kill_on_drop: false }`
[INFO] [stdout] f1fc660c958cae4bf05e6dad1d8a7dd7275a24e1160d69519dee6df0ae116710
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8049f61b8ba645c1b185c3f43b895fe0470f34956e1014ec477278ca8e251c6
[INFO] running `Command { std: "docker" "start" "-a" "c8049f61b8ba645c1b185c3f43b895fe0470f34956e1014ec477278ca8e251c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking git-hooked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `git_create_backup` is never used
[INFO] [stdout]  --> src/git.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn git_create_backup() -> Result<(), Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/hook.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     std::fs::create_dir(&destination_path);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     let _ = std::fs::create_dir(&destination_path);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_create_backup` is never used
[INFO] [stdout]  --> src/git.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn git_create_backup() -> Result<(), Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/hook.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     std::fs::create_dir(&destination_path);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     let _ = std::fs::create_dir(&destination_path);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.63s
[INFO] running `Command { std: "docker" "inspect" "c8049f61b8ba645c1b185c3f43b895fe0470f34956e1014ec477278ca8e251c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8049f61b8ba645c1b185c3f43b895fe0470f34956e1014ec477278ca8e251c6", kill_on_drop: false }`
[INFO] [stdout] c8049f61b8ba645c1b185c3f43b895fe0470f34956e1014ec477278ca8e251c6