[INFO] cloning repository https://github.com/rob893/versioning-tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rob893/versioning-tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frob893%2Fversioning-tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frob893%2Fversioning-tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2aeb77af342e5f4e24502aa0392922cb48384d73
[INFO] checking rob893/versioning-tool against master#1f81f906893d166d05fb4839f169983f2b564cc7 for pr-135167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frob893%2Fversioning-tool" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rob893/versioning-tool on toolchain 1f81f906893d166d05fb4839f169983f2b564cc7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rob893/versioning-tool
[INFO] finished tweaking git repo https://github.com/rob893/versioning-tool
[INFO] tweaked toml for git repo https://github.com/rob893/versioning-tool written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rob893/versioning-tool 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" "+1f81f906893d166d05fb4839f169983f2b564cc7" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d148d06236aafab856183518756d3a9edb2e6ab3e86dc5016c3dc979385998e
[INFO] running `Command { std: "docker" "start" "-a" "8d148d06236aafab856183518756d3a9edb2e6ab3e86dc5016c3dc979385998e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d148d06236aafab856183518756d3a9edb2e6ab3e86dc5016c3dc979385998e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d148d06236aafab856183518756d3a9edb2e6ab3e86dc5016c3dc979385998e", kill_on_drop: false }`
[INFO] [stdout] 8d148d06236aafab856183518756d3a9edb2e6ab3e86dc5016c3dc979385998e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 801d84b853f028dddcd306c23b3956b3cc425a7d445209bd7d52300490c56166
[INFO] running `Command { std: "docker" "start" "-a" "801d84b853f028dddcd306c23b3956b3cc425a7d445209bd7d52300490c56166", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking git2 v0.13.25
[INFO] [stderr]     Checking versioning-tool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `num_patch` is assigned to, but never used
[INFO] [stdout]  --> src/version_calculator.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut num_patch = 0;
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_num_patch` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/version_calculator.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut num_major = 0;
[INFO] [stdout]   |         ----^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `num_patch` is assigned to, but never used
[INFO] [stdout]  --> src/version_calculator.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut num_patch = 0;
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_num_patch` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/version_calculator.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut num_major = 0;
[INFO] [stdout]   |         ----^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.50s
[INFO] running `Command { std: "docker" "inspect" "801d84b853f028dddcd306c23b3956b3cc425a7d445209bd7d52300490c56166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801d84b853f028dddcd306c23b3956b3cc425a7d445209bd7d52300490c56166", kill_on_drop: false }`
[INFO] [stdout] 801d84b853f028dddcd306c23b3956b3cc425a7d445209bd7d52300490c56166