[INFO] cloning repository https://github.com/a11ce/mirrorchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/a11ce/mirrorchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa11ce%2Fmirrorchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa11ce%2Fmirrorchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04babce96ad46e27f9fe5af51d953d41df905f2f
[INFO] checking a11ce/mirrorchat against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa11ce%2Fmirrorchat" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/a11ce/mirrorchat on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/a11ce/mirrorchat
[INFO] finished tweaking git repo https://github.com/a11ce/mirrorchat
[INFO] tweaked toml for git repo https://github.com/a11ce/mirrorchat written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/a11ce/mirrorchat 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4c451ebb922b7cd772e2ff87c2cc631155a4dc976107adfdf3bf7c14d33cbb4
[INFO] running `Command { std: "docker" "start" "-a" "f4c451ebb922b7cd772e2ff87c2cc631155a4dc976107adfdf3bf7c14d33cbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4c451ebb922b7cd772e2ff87c2cc631155a4dc976107adfdf3bf7c14d33cbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c451ebb922b7cd772e2ff87c2cc631155a4dc976107adfdf3bf7c14d33cbb4", kill_on_drop: false }`
[INFO] [stdout] f4c451ebb922b7cd772e2ff87c2cc631155a4dc976107adfdf3bf7c14d33cbb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ba4226a5047b795e177c579e5806ab12a98425e421916116e312c4e3eb3ffe2
[INFO] running `Command { std: "docker" "start" "-a" "1ba4226a5047b795e177c579e5806ab12a98425e421916116e312c4e3eb3ffe2", kill_on_drop: false }`
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]     Checking termion v3.0.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking mirrorchat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.09s
[INFO] running `Command { std: "docker" "inspect" "1ba4226a5047b795e177c579e5806ab12a98425e421916116e312c4e3eb3ffe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba4226a5047b795e177c579e5806ab12a98425e421916116e312c4e3eb3ffe2", kill_on_drop: false }`
[INFO] [stdout] 1ba4226a5047b795e177c579e5806ab12a98425e421916116e312c4e3eb3ffe2
[INFO] checking a11ce/mirrorchat against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa11ce%2Fmirrorchat" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/a11ce/mirrorchat on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/a11ce/mirrorchat
[INFO] finished tweaking git repo https://github.com/a11ce/mirrorchat
[INFO] tweaked toml for git repo https://github.com/a11ce/mirrorchat written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/a11ce/mirrorchat 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8941d82f512b10913d83f46866107a24ebeee04cc0fb6138ca4e45c46018e28
[INFO] running `Command { std: "docker" "start" "-a" "f8941d82f512b10913d83f46866107a24ebeee04cc0fb6138ca4e45c46018e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8941d82f512b10913d83f46866107a24ebeee04cc0fb6138ca4e45c46018e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8941d82f512b10913d83f46866107a24ebeee04cc0fb6138ca4e45c46018e28", kill_on_drop: false }`
[INFO] [stdout] f8941d82f512b10913d83f46866107a24ebeee04cc0fb6138ca4e45c46018e28
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9426b55b0e63ce6426aeb19baf658655a1c7d67408876b581e2c278d7194add
[INFO] running `Command { std: "docker" "start" "-a" "b9426b55b0e63ce6426aeb19baf658655a1c7d67408876b581e2c278d7194add", kill_on_drop: false }`
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]     Checking termion v3.0.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking mirrorchat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.80s
[INFO] running `Command { std: "docker" "inspect" "b9426b55b0e63ce6426aeb19baf658655a1c7d67408876b581e2c278d7194add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9426b55b0e63ce6426aeb19baf658655a1c7d67408876b581e2c278d7194add", kill_on_drop: false }`
[INFO] [stdout] b9426b55b0e63ce6426aeb19baf658655a1c7d67408876b581e2c278d7194add