[INFO] cloning repository https://github.com/hanhossain/cstack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hanhossain/cstack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanhossain%2Fcstack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanhossain%2Fcstack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4267fa5c1ad22b439e7a405c25b1f0f68de6f38
[INFO] checking hanhossain/cstack against master#cd68ead9ecfdb3bfbd65cb5ff444c5eaadd21a4d for pr-112988-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanhossain%2Fcstack" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hanhossain/cstack on toolchain cd68ead9ecfdb3bfbd65cb5ff444c5eaadd21a4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd68ead9ecfdb3bfbd65cb5ff444c5eaadd21a4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hanhossain/cstack
[INFO] finished tweaking git repo https://github.com/hanhossain/cstack
[INFO] tweaked toml for git repo https://github.com/hanhossain/cstack written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hanhossain/cstack 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" "+cd68ead9ecfdb3bfbd65cb5ff444c5eaadd21a4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasi v0.11.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded serde v1.0.141
[INFO] [stderr]   Downloaded serde_repr v0.1.9
[INFO] [stderr]   Downloaded bincode v1.3.3
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded uuid v1.1.2
[INFO] [stderr]   Downloaded getrandom v0.2.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.42
[INFO] [stderr]   Downloaded serde_derive v1.0.141
[INFO] [stderr]   Downloaded unicode-ident v1.0.2
[INFO] [stderr]   Downloaded syn v1.0.98
[INFO] [stderr]   Downloaded libc v0.2.126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+cd68ead9ecfdb3bfbd65cb5ff444c5eaadd21a4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2025f70a930b7ebacedc087b9afa16734971e1d42d8d26bf50e19ea7e321d6c
[INFO] running `Command { std: "docker" "start" "-a" "e2025f70a930b7ebacedc087b9afa16734971e1d42d8d26bf50e19ea7e321d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2025f70a930b7ebacedc087b9afa16734971e1d42d8d26bf50e19ea7e321d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2025f70a930b7ebacedc087b9afa16734971e1d42d8d26bf50e19ea7e321d6c", kill_on_drop: false }`
[INFO] [stdout] e2025f70a930b7ebacedc087b9afa16734971e1d42d8d26bf50e19ea7e321d6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+cd68ead9ecfdb3bfbd65cb5ff444c5eaadd21a4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b67c36121bb3f858fc2660846d1acb7e52f4e125880e8d999fd2d48ec0ec2102
[INFO] running `Command { std: "docker" "start" "-a" "b67c36121bb3f858fc2660846d1acb7e52f4e125880e8d999fd2d48ec0ec2102", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde_derive v1.0.141
[INFO] [stderr]    Compiling serde v1.0.141
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]    Compiling serde_repr v0.1.9
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking cstack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pager.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut pager = &mut self;
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pager.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut pager = &mut self;
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.07s
[INFO] running `Command { std: "docker" "inspect" "b67c36121bb3f858fc2660846d1acb7e52f4e125880e8d999fd2d48ec0ec2102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67c36121bb3f858fc2660846d1acb7e52f4e125880e8d999fd2d48ec0ec2102", kill_on_drop: false }`
[INFO] [stdout] b67c36121bb3f858fc2660846d1acb7e52f4e125880e8d999fd2d48ec0ec2102