[INFO] cloning repository https://github.com/fmosbacher/mathematician
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fmosbacher/mathematician" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmosbacher%2Fmathematician", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmosbacher%2Fmathematician'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 561e816499a3697e09020b62d0f537ba9ff864ad
[INFO] checking fmosbacher/mathematician against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmosbacher%2Fmathematician" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fmosbacher/mathematician
[INFO] finished tweaking git repo https://github.com/fmosbacher/mathematician
[INFO] tweaked toml for git repo https://github.com/fmosbacher/mathematician written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fmosbacher/mathematician on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fmosbacher/mathematician 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e6d9a2ee75cdbfe94ed4ecdbbe33b689b9c1d5ce5cb8f0d46e03dfbeaf1a41b
[INFO] running `Command { std: "docker" "start" "-a" "3e6d9a2ee75cdbfe94ed4ecdbbe33b689b9c1d5ce5cb8f0d46e03dfbeaf1a41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e6d9a2ee75cdbfe94ed4ecdbbe33b689b9c1d5ce5cb8f0d46e03dfbeaf1a41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6d9a2ee75cdbfe94ed4ecdbbe33b689b9c1d5ce5cb8f0d46e03dfbeaf1a41b", kill_on_drop: false }`
[INFO] [stdout] 3e6d9a2ee75cdbfe94ed4ecdbbe33b689b9c1d5ce5cb8f0d46e03dfbeaf1a41b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7400dd2639c935cb11d3526bd597db861a6676ac9d281087dbd3c03f69403998
[INFO] running `Command { std: "docker" "start" "-a" "7400dd2639c935cb11d3526bd597db861a6676ac9d281087dbd3c03f69403998", kill_on_drop: false }`
[INFO] [stderr]     Checking kombi v0.1.0 (/opt/rustwide/workdir/kombi)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> kombi/src/lib.rs:31:20
[INFO] [stdout]    |
[INFO] [stdout] 31 |     parser: Parser<'a, T>,
[INFO] [stdout]    |                    ^^ the lifetime is named here
[INFO] [stdout] 32 |     predicate: impl Fn(&T) -> bool + 'a,
[INFO] [stdout] 33 | ) -> Parser<T> {
[INFO] [stdout]    |      --------- the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 33 | ) -> Parser<'a, T> {
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mathematician v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "7400dd2639c935cb11d3526bd597db861a6676ac9d281087dbd3c03f69403998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7400dd2639c935cb11d3526bd597db861a6676ac9d281087dbd3c03f69403998", kill_on_drop: false }`
[INFO] [stdout] 7400dd2639c935cb11d3526bd597db861a6676ac9d281087dbd3c03f69403998