[INFO] fetching crate findreplace 0.1.0...
[INFO] checking findreplace-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate findreplace 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate findreplace 0.1.0 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 findreplace 0.1.0
[INFO] finished tweaking crates.io crate findreplace 0.1.0
[INFO] tweaked toml for crates.io crate findreplace 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate findreplace 0.1.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.96
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.8
[INFO] [stderr]   Downloaded aho-corasick v1.0.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.1
[INFO] [stderr]   Downloaded regex v1.8.1
[INFO] [stderr]   Downloaded serde v1.0.162
[INFO] [stderr]   Downloaded serde_yaml v0.9.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3e56ef10e9d7cbd75e46ca52050dc713688a1ca77507106ff061cd29595a137d
[INFO] running `Command { std: "docker" "start" "-a" "3e56ef10e9d7cbd75e46ca52050dc713688a1ca77507106ff061cd29595a137d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e56ef10e9d7cbd75e46ca52050dc713688a1ca77507106ff061cd29595a137d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e56ef10e9d7cbd75e46ca52050dc713688a1ca77507106ff061cd29595a137d", kill_on_drop: false }`
[INFO] [stdout] 3e56ef10e9d7cbd75e46ca52050dc713688a1ca77507106ff061cd29595a137d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 596ad3695b450c3d3c5062e42ad8537630a1050751e054d4e48953ed891d1ead
[INFO] running `Command { std: "docker" "start" "-a" "596ad3695b450c3d3c5062e42ad8537630a1050751e054d4e48953ed891d1ead", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.162
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking serde_yaml v0.9.21
[INFO] [stderr]     Checking findreplace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `Command { std: "docker" "inspect" "596ad3695b450c3d3c5062e42ad8537630a1050751e054d4e48953ed891d1ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "596ad3695b450c3d3c5062e42ad8537630a1050751e054d4e48953ed891d1ead", kill_on_drop: false }`
[INFO] [stdout] 596ad3695b450c3d3c5062e42ad8537630a1050751e054d4e48953ed891d1ead
[INFO] checking findreplace-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate findreplace 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate findreplace 0.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate findreplace 0.1.0
[INFO] finished tweaking crates.io crate findreplace 0.1.0
[INFO] tweaked toml for crates.io crate findreplace 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate findreplace 0.1.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3af8f8b70cce0639bf499a4798a3184dc950d99e95440ffc42b3ebfa944e432c
[INFO] running `Command { std: "docker" "start" "-a" "3af8f8b70cce0639bf499a4798a3184dc950d99e95440ffc42b3ebfa944e432c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3af8f8b70cce0639bf499a4798a3184dc950d99e95440ffc42b3ebfa944e432c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af8f8b70cce0639bf499a4798a3184dc950d99e95440ffc42b3ebfa944e432c", kill_on_drop: false }`
[INFO] [stdout] 3af8f8b70cce0639bf499a4798a3184dc950d99e95440ffc42b3ebfa944e432c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ead1a3f8718bd7ad5d66e540d3bdde0bf2104343f58e552505e08fb8a4e55a4
[INFO] running `Command { std: "docker" "start" "-a" "1ead1a3f8718bd7ad5d66e540d3bdde0bf2104343f58e552505e08fb8a4e55a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.162
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking serde_yaml v0.9.21
[INFO] [stderr]     Checking findreplace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "1ead1a3f8718bd7ad5d66e540d3bdde0bf2104343f58e552505e08fb8a4e55a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ead1a3f8718bd7ad5d66e540d3bdde0bf2104343f58e552505e08fb8a4e55a4", kill_on_drop: false }`
[INFO] [stdout] 1ead1a3f8718bd7ad5d66e540d3bdde0bf2104343f58e552505e08fb8a4e55a4