[INFO] cloning repository https://github.com/zserik/zxcalc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zserik/zxcalc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzserik%2Fzxcalc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzserik%2Fzxcalc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 614cd872bad229679c8c67170fc29375925cfc22
[INFO] checking zserik/zxcalc-rs against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzserik%2Fzxcalc-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zserik/zxcalc-rs on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zserik/zxcalc-rs
[INFO] finished tweaking git repo https://github.com/zserik/zxcalc-rs
[INFO] tweaked toml for git repo https://github.com/zserik/zxcalc-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/zserik/zxcalc-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30c5741f8a5044f274003c989ff7c989223cbb4a8ef356e217fc194a32496ac8
[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" "30c5741f8a5044f274003c989ff7c989223cbb4a8ef356e217fc194a32496ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30c5741f8a5044f274003c989ff7c989223cbb4a8ef356e217fc194a32496ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c5741f8a5044f274003c989ff7c989223cbb4a8ef356e217fc194a32496ac8", kill_on_drop: false }`
[INFO] [stdout] 30c5741f8a5044f274003c989ff7c989223cbb4a8ef356e217fc194a32496ac8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52258214e0d79657e119f799df7c9d3cf5fe0cbf889501b63467060ef1d69eec
[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" "52258214e0d79657e119f799df7c9d3cf5fe0cbf889501b63467060ef1d69eec", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling anyhow v1.0.36
[INFO] [stderr]     Checking sortedvec v0.5.0
[INFO] [stderr]     Checking infract v0.0.0 (/opt/rustwide/workdir/infract)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> infract/src/lib.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn rest_mul(&mut self, mut n2: i128, mut d2: i128) {
[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 does not need to be mutable
[INFO] [stdout]   --> infract/src/lib.rs:58:42
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn rest_mul(&mut self, mut n2: i128, mut d2: i128) {
[INFO] [stdout]    |                                          ----^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> infract/src/lib.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn rest_mul(&mut self, mut n2: i128, mut d2: i128) {
[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 does not need to be mutable
[INFO] [stdout]   --> infract/src/lib.rs:58:42
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn rest_mul(&mut self, mut n2: i128, mut d2: i128) {
[INFO] [stdout]    |                                          ----^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking zxcalc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.64s
[INFO] running `Command { std: "docker" "inspect" "52258214e0d79657e119f799df7c9d3cf5fe0cbf889501b63467060ef1d69eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52258214e0d79657e119f799df7c9d3cf5fe0cbf889501b63467060ef1d69eec", kill_on_drop: false }`
[INFO] [stdout] 52258214e0d79657e119f799df7c9d3cf5fe0cbf889501b63467060ef1d69eec