[INFO] cloning repository https://github.com/FirstTimeInForever/mygit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FirstTimeInForever/mygit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFirstTimeInForever%2Fmygit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFirstTimeInForever%2Fmygit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e5d48faf09e720c609c2b6461ce599311a229f0
[INFO] checking FirstTimeInForever/mygit against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFirstTimeInForever%2Fmygit" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FirstTimeInForever/mygit on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FirstTimeInForever/mygit
[INFO] finished tweaking git repo https://github.com/FirstTimeInForever/mygit
[INFO] tweaked toml for git repo https://github.com/FirstTimeInForever/mygit written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/FirstTimeInForever/mygit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52121b8f8d0709bb205e4bed5bdd67ff19a3db5313219f9005119fac73920ee9
[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" "52121b8f8d0709bb205e4bed5bdd67ff19a3db5313219f9005119fac73920ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52121b8f8d0709bb205e4bed5bdd67ff19a3db5313219f9005119fac73920ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52121b8f8d0709bb205e4bed5bdd67ff19a3db5313219f9005119fac73920ee9", kill_on_drop: false }`
[INFO] [stdout] 52121b8f8d0709bb205e4bed5bdd67ff19a3db5313219f9005119fac73920ee9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 720b6d08a5d1cf3ec79c6e1303085498ba9c28300fb15b8d79b6fbf5c8ed9fc9
[INFO] running `Command { std: "docker" "start" "-a" "720b6d08a5d1cf3ec79c6e1303085498ba9c28300fb15b8d79b6fbf5c8ed9fc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling hex-literal-impl v0.2.2
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking mygit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get_commit`
[INFO] [stdout]   --> src/mygit/repository.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn get_commit(&self, commit_hash: &str) -> io::Result<Commit> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head_commit`
[INFO] [stdout]   --> src/mygit/repository.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn head_commit(&self) -> io::Result<Commit> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_commit`
[INFO] [stdout]   --> src/mygit/repository.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn get_commit(&self, commit_hash: &str) -> io::Result<Commit> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head_commit`
[INFO] [stdout]   --> src/mygit/repository.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn head_commit(&self) -> io::Result<Commit> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.41s
[INFO] running `Command { std: "docker" "inspect" "720b6d08a5d1cf3ec79c6e1303085498ba9c28300fb15b8d79b6fbf5c8ed9fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720b6d08a5d1cf3ec79c6e1303085498ba9c28300fb15b8d79b6fbf5c8ed9fc9", kill_on_drop: false }`
[INFO] [stdout] 720b6d08a5d1cf3ec79c6e1303085498ba9c28300fb15b8d79b6fbf5c8ed9fc9