[INFO] fetching crate math_paper 0.3.5...
[INFO] checking math_paper-0.3.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate math_paper 0.3.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate math_paper 0.3.5 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 crates.io crate math_paper 0.3.5
[INFO] finished tweaking crates.io crate math_paper 0.3.5
[INFO] tweaked toml for crates.io crate math_paper 0.3.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages
[INFO] [stderr]       Adding jni v0.19.0 (latest: v0.21.1)
[INFO] [stderr]       Adding jni-sys v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e61c892c872b65ad3388216aa6d9f34a455e1f8bd7e7880a53e4835c06a1526a
[INFO] running `Command { std: "docker" "start" "-a" "e61c892c872b65ad3388216aa6d9f34a455e1f8bd7e7880a53e4835c06a1526a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e61c892c872b65ad3388216aa6d9f34a455e1f8bd7e7880a53e4835c06a1526a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61c892c872b65ad3388216aa6d9f34a455e1f8bd7e7880a53e4835c06a1526a", kill_on_drop: false }`
[INFO] [stdout] e61c892c872b65ad3388216aa6d9f34a455e1f8bd7e7880a53e4835c06a1526a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a3bac53afd3f4107f560aa1cd2532ebb9266d3fdde356749f246af420de59066
[INFO] running `Command { std: "docker" "start" "-a" "a3bac53afd3f4107f560aa1cd2532ebb9266d3fdde356749f246af420de59066", kill_on_drop: false }`
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling jni v0.19.0
[INFO] [stderr]     Checking math_paper v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.21s
[INFO] running `Command { std: "docker" "inspect" "a3bac53afd3f4107f560aa1cd2532ebb9266d3fdde356749f246af420de59066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3bac53afd3f4107f560aa1cd2532ebb9266d3fdde356749f246af420de59066", kill_on_drop: false }`
[INFO] [stdout] a3bac53afd3f4107f560aa1cd2532ebb9266d3fdde356749f246af420de59066
[INFO] checking math_paper-0.3.5 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate math_paper 0.3.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate math_paper 0.3.5 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 crates.io crate math_paper 0.3.5
[INFO] finished tweaking crates.io crate math_paper 0.3.5
[INFO] tweaked toml for crates.io crate math_paper 0.3.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4b9af841832bfafa1cd552632541009d01228107a0b22e605633b307fc9a59c5
[INFO] running `Command { std: "docker" "start" "-a" "4b9af841832bfafa1cd552632541009d01228107a0b22e605633b307fc9a59c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b9af841832bfafa1cd552632541009d01228107a0b22e605633b307fc9a59c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b9af841832bfafa1cd552632541009d01228107a0b22e605633b307fc9a59c5", kill_on_drop: false }`
[INFO] [stdout] 4b9af841832bfafa1cd552632541009d01228107a0b22e605633b307fc9a59c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f60ffd7edbdecda071e3822396875a314da7c3a34e1c033a98a70e08597a7f3b
[INFO] running `Command { std: "docker" "start" "-a" "f60ffd7edbdecda071e3822396875a314da7c3a34e1c033a98a70e08597a7f3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking jni-sys v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling jni v0.19.0
[INFO] [stderr]     Checking math_paper v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.12s
[INFO] running `Command { std: "docker" "inspect" "f60ffd7edbdecda071e3822396875a314da7c3a34e1c033a98a70e08597a7f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60ffd7edbdecda071e3822396875a314da7c3a34e1c033a98a70e08597a7f3b", kill_on_drop: false }`
[INFO] [stdout] f60ffd7edbdecda071e3822396875a314da7c3a34e1c033a98a70e08597a7f3b