[INFO] cloning repository https://github.com/mgrabmueller/med
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mgrabmueller/med" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Fmed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Fmed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eea892b4e510feaa621765d7c2bfa16f7c4ee523
[INFO] testing mgrabmueller/med against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Fmed" "/workspace/builds/worker-73/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mgrabmueller/med on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mgrabmueller/med
[INFO] finished tweaking git repo https://github.com/mgrabmueller/med
[INFO] tweaked toml for git repo https://github.com/mgrabmueller/med written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate git repo https://github.com/mgrabmueller/med already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d0f912b68909613a8c6e3571c6e114f9dd5209f1af541182a89993718007d0b
[INFO] running `Command { std: "docker" "start" "-a" "4d0f912b68909613a8c6e3571c6e114f9dd5209f1af541182a89993718007d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d0f912b68909613a8c6e3571c6e114f9dd5209f1af541182a89993718007d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0f912b68909613a8c6e3571c6e114f9dd5209f1af541182a89993718007d0b", kill_on_drop: false }`
[INFO] [stdout] 4d0f912b68909613a8c6e3571c6e114f9dd5209f1af541182a89993718007d0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1971dec9faea27e5e5636f8c59e048fd8acebffe51bd417b4f5340835f66160d
[INFO] running `Command { std: "docker" "start" "-a" "1971dec9faea27e5e5636f8c59e048fd8acebffe51bd417b4f5340835f66160d", kill_on_drop: false }`
[INFO] [stderr]    Compiling med v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1058:13
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         let mut f = BufReader::new(File::open(fname)?);
[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]     --> src/main.rs:1671:13
[INFO] [stdout]      |
[INFO] [stdout] 1671 |         let mut last_cmd = Some(c);
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "1971dec9faea27e5e5636f8c59e048fd8acebffe51bd417b4f5340835f66160d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1971dec9faea27e5e5636f8c59e048fd8acebffe51bd417b4f5340835f66160d", kill_on_drop: false }`
[INFO] [stdout] 1971dec9faea27e5e5636f8c59e048fd8acebffe51bd417b4f5340835f66160d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b9812addccb4f3ca9c089d6cd165054980746c7102fda603db2e5ff48eab528
[INFO] running `Command { std: "docker" "start" "-a" "2b9812addccb4f3ca9c089d6cd165054980746c7102fda603db2e5ff48eab528", kill_on_drop: false }`
[INFO] [stderr]    Compiling med v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1058:13
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         let mut f = BufReader::new(File::open(fname)?);
[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]     --> src/main.rs:1671:13
[INFO] [stdout]      |
[INFO] [stdout] 1671 |         let mut last_cmd = Some(c);
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "2b9812addccb4f3ca9c089d6cd165054980746c7102fda603db2e5ff48eab528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b9812addccb4f3ca9c089d6cd165054980746c7102fda603db2e5ff48eab528", kill_on_drop: false }`
[INFO] [stdout] 2b9812addccb4f3ca9c089d6cd165054980746c7102fda603db2e5ff48eab528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a9f0d0b40bc5c4f4fd93c672c37bb2973d29e02793561be41bc7f7ef30e7d8c
[INFO] running `Command { std: "docker" "start" "-a" "1a9f0d0b40bc5c4f4fd93c672c37bb2973d29e02793561be41bc7f7ef30e7d8c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/main.rs:1058:13
[INFO] [stderr]      |
[INFO] [stderr] 1058 |         let mut f = BufReader::new(File::open(fname)?);
[INFO] [stderr]      |             ----^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/main.rs:1671:13
[INFO] [stderr]      |
[INFO] [stderr] 1671 |         let mut last_cmd = Some(c);
[INFO] [stderr]      |             ----^^^^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `med` (bin "med" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/med-35c5fdf058946132)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test::mark ... ok
[INFO] [stdout] test test::prompt_set ... ok
[INFO] [stdout] test test::prompt_set2 ... ok
[INFO] [stdout] test test::quit_modified2 ... ok
[INFO] [stdout] test test::quit_unmodified2 ... ok
[INFO] [stdout] test test::prompt_toggle ... ok
[INFO] [stdout] test test::quit_modified ... ok
[INFO] [stdout] test test::quit_modified3 ... ok
[INFO] [stdout] test test::quit_unmodified ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a9f0d0b40bc5c4f4fd93c672c37bb2973d29e02793561be41bc7f7ef30e7d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9f0d0b40bc5c4f4fd93c672c37bb2973d29e02793561be41bc7f7ef30e7d8c", kill_on_drop: false }`
[INFO] [stdout] 1a9f0d0b40bc5c4f4fd93c672c37bb2973d29e02793561be41bc7f7ef30e7d8c