[INFO] cloning repository https://github.com/skullhood/siegfried
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skullhood/siegfried" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskullhood%2Fsiegfried", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskullhood%2Fsiegfried'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 036fa261a6e48e808ea52d70a4ae9134165fa602
[INFO] checking skullhood/siegfried against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskullhood%2Fsiegfried" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/skullhood/siegfried
[INFO] finished tweaking git repo https://github.com/skullhood/siegfried
[INFO] tweaked toml for git repo https://github.com/skullhood/siegfried written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skullhood/siegfried on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skullhood/siegfried 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: env
[INFO] [stderr] help: env is a valid .cargo/config.toml key
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.7
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.7
[INFO] [stderr]   Downloaded bitintr v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.118
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc9118e4cba4db7157d3fc632c51e5b12b763afb6116acbdf79fe93e08e9dedd
[INFO] running `Command { std: "docker" "start" "-a" "cc9118e4cba4db7157d3fc632c51e5b12b763afb6116acbdf79fe93e08e9dedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9118e4cba4db7157d3fc632c51e5b12b763afb6116acbdf79fe93e08e9dedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9118e4cba4db7157d3fc632c51e5b12b763afb6116acbdf79fe93e08e9dedd", kill_on_drop: false }`
[INFO] [stdout] cc9118e4cba4db7157d3fc632c51e5b12b763afb6116acbdf79fe93e08e9dedd
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25284ac62b2a0062ad248f494586f9c1b7dc279aa13a3c8ce800cb1274dbb042
[INFO] running `Command { std: "docker" "start" "-a" "25284ac62b2a0062ad248f494586f9c1b7dc279aa13a3c8ce800cb1274dbb042", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: env
[INFO] [stderr] help: env is a valid .cargo/config.toml key
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling semver v1.0.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bitintr v0.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_pcg v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking siegfried v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let mut node = self.get_node_mut(index);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:245:21
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 let mut node = self.get_node_mut(parent);
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let mut node = self.get_node_mut(index);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:245:21
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 let mut node = self.get_node_mut(parent);
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "25284ac62b2a0062ad248f494586f9c1b7dc279aa13a3c8ce800cb1274dbb042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25284ac62b2a0062ad248f494586f9c1b7dc279aa13a3c8ce800cb1274dbb042", kill_on_drop: false }`
[INFO] [stdout] 25284ac62b2a0062ad248f494586f9c1b7dc279aa13a3c8ce800cb1274dbb042
