[INFO] cloning repository https://github.com/razorheadfx/mediocore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/razorheadfx/mediocore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frazorheadfx%2Fmediocore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frazorheadfx%2Fmediocore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 722a0f986b044b911cfe41e27de145d9abecacd4
[INFO] checking razorheadfx/mediocore against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frazorheadfx%2Fmediocore" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/razorheadfx/mediocore
[INFO] finished tweaking git repo https://github.com/razorheadfx/mediocore
[INFO] tweaked toml for git repo https://github.com/razorheadfx/mediocore written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/razorheadfx/mediocore on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/razorheadfx/mediocore 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused manifest key: package.https
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding ansi_term v0.12.1
[INFO] [stderr]       Adding bitflags v1.3.2
[INFO] [stderr]       Adding clap v2.34.0
[INFO] [stderr]       Adding heck v0.3.3
[INFO] [stderr]       Adding itoa v1.0.15
[INFO] [stderr]     Updating memchr v2.0.1 -> v2.7.6
[INFO] [stderr]       Adding proc-macro2 v0.4.30
[INFO] [stderr]       Adding proc-macro2 v1.0.103
[INFO] [stderr]       Adding quote v0.6.13
[INFO] [stderr]       Adding quote v1.0.42
[INFO] [stderr]       Adding ryu v1.0.20
[INFO] [stderr]       Adding serde v1.0.228
[INFO] [stderr]       Adding serde_core v1.0.228
[INFO] [stderr]       Adding serde_derive v1.0.228
[INFO] [stderr]       Adding serde_json v1.0.145
[INFO] [stderr]       Adding strsim v0.8.0
[INFO] [stderr]       Adding structopt v0.2.18 (available: v0.3.26)
[INFO] [stderr]       Adding structopt-derive v0.2.18
[INFO] [stderr]       Adding syn v0.15.44
[INFO] [stderr]       Adding syn v2.0.110
[INFO] [stderr]       Adding textwrap v0.11.0
[INFO] [stderr]       Adding unicode-ident v1.0.22
[INFO] [stderr]       Adding unicode-segmentation v1.12.0
[INFO] [stderr]       Adding unicode-width v0.1.14
[INFO] [stderr]       Adding unicode-xid v0.1.0
[INFO] [stderr]       Adding vec_map v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 729e5b4e93099c42d7493d0f540401a1f5672e8688d7315c5f1704c530c62104
[INFO] running `Command { std: "docker" "start" "-a" "729e5b4e93099c42d7493d0f540401a1f5672e8688d7315c5f1704c530c62104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "729e5b4e93099c42d7493d0f540401a1f5672e8688d7315c5f1704c530c62104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "729e5b4e93099c42d7493d0f540401a1f5672e8688d7315c5f1704c530c62104", kill_on_drop: false }`
[INFO] [stdout] 729e5b4e93099c42d7493d0f540401a1f5672e8688d7315c5f1704c530c62104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6822dbf0fa246d2d3161c5a16c954c404b5d65285e62054bb308f9589f5ef9db
[INFO] running `Command { std: "docker" "start" "-a" "6822dbf0fa246d2d3161c5a16c954c404b5d65285e62054bb308f9589f5ef9db", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused manifest key: package.https
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking mediocore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/mdcr.rs:235:17
[INFO] [stdout]     |
[INFO] [stdout] 235 |             let mut pad_to = creline.len() + per_core_chars;
[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] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/mdcr.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[derive(Debug, StructOpt)]
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/mdcr.rs:235:17
[INFO] [stdout]     |
[INFO] [stdout] 235 |             let mut pad_to = creline.len() + per_core_chars;
[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] [stderr] error: could not compile `mediocore` (bin "mdcr") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/mdcr.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[derive(Debug, StructOpt)]
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mediocore` (bin "mdcr" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6822dbf0fa246d2d3161c5a16c954c404b5d65285e62054bb308f9589f5ef9db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6822dbf0fa246d2d3161c5a16c954c404b5d65285e62054bb308f9589f5ef9db", kill_on_drop: false }`
[INFO] [stdout] 6822dbf0fa246d2d3161c5a16c954c404b5d65285e62054bb308f9589f5ef9db