[INFO] fetching crate comic 0.1.0...
[INFO] checking comic-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate comic 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate comic 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 comic 0.1.0
[INFO] finished tweaking crates.io crate comic 0.1.0
[INFO] tweaked toml for crates.io crate comic 0.1.0 written to /workspace/builds/worker-1-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding domafic v0.1.2 (latest: v0.2.0)
[INFO] [stderr]       Adding svg v0.5.12 (latest: v0.16.0)
[INFO] [stderr]       Adding svgbob v0.1.14 (latest: v0.7.2)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either_n v0.2.0
[INFO] [stderr]   Downloaded domafic v0.1.2
[INFO] [stderr]   Downloaded memenhancer v0.1.0
[INFO] [stderr]   Downloaded svg v0.5.12
[INFO] [stderr]   Downloaded svgbob v0.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5346552aad4241f255c50244e098c1397d2836a955d0206f3075e7d806291225
[INFO] running `Command { std: "docker" "start" "-a" "5346552aad4241f255c50244e098c1397d2836a955d0206f3075e7d806291225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5346552aad4241f255c50244e098c1397d2836a955d0206f3075e7d806291225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5346552aad4241f255c50244e098c1397d2836a955d0206f3075e7d806291225", kill_on_drop: false }`
[INFO] [stdout] 5346552aad4241f255c50244e098c1397d2836a955d0206f3075e7d806291225
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 512ed2412988b8ef4f995a0f57dc662918230d85266a585ff880940467dba9e6
[INFO] running `Command { std: "docker" "start" "-a" "512ed2412988b8ef4f995a0f57dc662918230d85266a585ff880940467dba9e6", kill_on_drop: false }`
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]     Checking either_n v0.2.0
[INFO] [stderr]     Checking svgbob v0.1.14
[INFO] [stderr]     Checking memenhancer v0.1.0
[INFO] [stderr]     Checking domafic v0.1.2
[INFO] [stderr]     Checking comic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.5.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "512ed2412988b8ef4f995a0f57dc662918230d85266a585ff880940467dba9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512ed2412988b8ef4f995a0f57dc662918230d85266a585ff880940467dba9e6", kill_on_drop: false }`
[INFO] [stdout] 512ed2412988b8ef4f995a0f57dc662918230d85266a585ff880940467dba9e6
[INFO] checking comic-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate comic 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate comic 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 comic 0.1.0
[INFO] finished tweaking crates.io crate comic 0.1.0
[INFO] tweaked toml for crates.io crate comic 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding domafic v0.1.2 (latest: v0.2.0)
[INFO] [stderr]       Adding svg v0.5.12 (latest: v0.16.0)
[INFO] [stderr]       Adding svgbob v0.1.14 (latest: v0.7.2)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 587d8bc10e383d033cd0fe9bf3f931304ad27792b88bb7445f030cab501793e9
[INFO] running `Command { std: "docker" "start" "-a" "587d8bc10e383d033cd0fe9bf3f931304ad27792b88bb7445f030cab501793e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "587d8bc10e383d033cd0fe9bf3f931304ad27792b88bb7445f030cab501793e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587d8bc10e383d033cd0fe9bf3f931304ad27792b88bb7445f030cab501793e9", kill_on_drop: false }`
[INFO] [stdout] 587d8bc10e383d033cd0fe9bf3f931304ad27792b88bb7445f030cab501793e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9855f616e1a3bc5eb6198634afab0ef22dd05399a44a1c8ce65e5804e3f680b6
[INFO] running `Command { std: "docker" "start" "-a" "9855f616e1a3bc5eb6198634afab0ef22dd05399a44a1c8ce65e5804e3f680b6", kill_on_drop: false }`
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]     Checking either_n v0.2.0
[INFO] [stderr]     Checking svgbob v0.1.14
[INFO] [stderr]     Checking memenhancer v0.1.0
[INFO] [stderr]     Checking domafic v0.1.2
[INFO] [stderr]     Checking comic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.5.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9855f616e1a3bc5eb6198634afab0ef22dd05399a44a1c8ce65e5804e3f680b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9855f616e1a3bc5eb6198634afab0ef22dd05399a44a1c8ce65e5804e3f680b6", kill_on_drop: false }`
[INFO] [stdout] 9855f616e1a3bc5eb6198634afab0ef22dd05399a44a1c8ce65e5804e3f680b6