[INFO] fetching crate similar-asserts 1.5.0...
[INFO] checking similar-asserts-1.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate similar-asserts 1.5.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate similar-asserts 1.5.0 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 similar-asserts 1.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate similar-asserts 1.5.0
[INFO] tweaked toml for crates.io crate similar-asserts 1.5.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate similar-asserts 1.5.0 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 similar v2.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c8733220727d683675104d1746ad0ce72d08d468fda14fbbebddeffd7a50c022
[INFO] running `Command { std: "docker" "start" "-a" "c8733220727d683675104d1746ad0ce72d08d468fda14fbbebddeffd7a50c022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8733220727d683675104d1746ad0ce72d08d468fda14fbbebddeffd7a50c022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8733220727d683675104d1746ad0ce72d08d468fda14fbbebddeffd7a50c022", kill_on_drop: false }`
[INFO] [stdout] c8733220727d683675104d1746ad0ce72d08d468fda14fbbebddeffd7a50c022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1021f9d78fcf03ff25b2a95c01f7b9162a60b14f19d8ff6af7e51b5d8a2c748e
[INFO] running `Command { std: "docker" "start" "-a" "1021f9d78fcf03ff25b2a95c01f7b9162a60b14f19d8ff6af7e51b5d8a2c748e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking similar-asserts v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.68s
[INFO] running `Command { std: "docker" "inspect" "1021f9d78fcf03ff25b2a95c01f7b9162a60b14f19d8ff6af7e51b5d8a2c748e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1021f9d78fcf03ff25b2a95c01f7b9162a60b14f19d8ff6af7e51b5d8a2c748e", kill_on_drop: false }`
[INFO] [stdout] 1021f9d78fcf03ff25b2a95c01f7b9162a60b14f19d8ff6af7e51b5d8a2c748e
[INFO] checking similar-asserts-1.5.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate similar-asserts 1.5.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate similar-asserts 1.5.0 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 similar-asserts 1.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate similar-asserts 1.5.0
[INFO] tweaked toml for crates.io crate similar-asserts 1.5.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate similar-asserts 1.5.0 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65304416b4db547ffea071b3a1162447398d77539336123ab30dede79f7395e7
[INFO] running `Command { std: "docker" "start" "-a" "65304416b4db547ffea071b3a1162447398d77539336123ab30dede79f7395e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65304416b4db547ffea071b3a1162447398d77539336123ab30dede79f7395e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65304416b4db547ffea071b3a1162447398d77539336123ab30dede79f7395e7", kill_on_drop: false }`
[INFO] [stdout] 65304416b4db547ffea071b3a1162447398d77539336123ab30dede79f7395e7
[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" "-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] 08d7d2e85998bcfe2db38f9e5d184a72144b8b7d73872a1481c670548233ed14
[INFO] running `Command { std: "docker" "start" "-a" "08d7d2e85998bcfe2db38f9e5d184a72144b8b7d73872a1481c670548233ed14", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking similar-asserts v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "08d7d2e85998bcfe2db38f9e5d184a72144b8b7d73872a1481c670548233ed14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d7d2e85998bcfe2db38f9e5d184a72144b8b7d73872a1481c670548233ed14", kill_on_drop: false }`
[INFO] [stdout] 08d7d2e85998bcfe2db38f9e5d184a72144b8b7d73872a1481c670548233ed14