[INFO] fetching crate minicdn 0.2.1...
[INFO] checking minicdn-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate minicdn 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate minicdn 0.2.1 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 minicdn 0.2.1
[INFO] finished tweaking crates.io crate minicdn 0.2.1
[INFO] tweaked toml for crates.io crate minicdn 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate minicdn 0.2.1 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.138
[INFO] [stderr]   Downloaded bytemuck v1.10.0
[INFO] [stderr]   Downloaded bytestring v1.1.0
[INFO] [stderr]   Downloaded sha256 v1.0.3
[INFO] [stderr]   Downloaded serde_derive v1.0.138
[INFO] [stderr]   Downloaded litrs v0.2.3
[INFO] [stderr]   Downloaded toml v0.5.10
[INFO] [stderr]   Downloaded serde_json v1.0.82
[INFO] [stderr]   Downloaded webp v0.2.2
[INFO] [stderr]   Downloaded libwebp-sys v0.4.2
[INFO] [stderr]   Downloaded minicdn_core v0.2.0
[INFO] [stderr]   Downloaded minicdn_macros v0.2.1
[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] 6b9b7b5654ac553f480ac59f1942436cc4f2dd3236aad0ad6bbd3eeac4b01786
[INFO] running `Command { std: "docker" "start" "-a" "6b9b7b5654ac553f480ac59f1942436cc4f2dd3236aad0ad6bbd3eeac4b01786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b9b7b5654ac553f480ac59f1942436cc4f2dd3236aad0ad6bbd3eeac4b01786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9b7b5654ac553f480ac59f1942436cc4f2dd3236aad0ad6bbd3eeac4b01786", kill_on_drop: false }`
[INFO] [stdout] 6b9b7b5654ac553f480ac59f1942436cc4f2dd3236aad0ad6bbd3eeac4b01786
[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] 868e7f25c201eb26a478932dec7a8e4548b7c69edd0b049df24fe8ae3fea25e4
[INFO] running `Command { std: "docker" "start" "-a" "868e7f25c201eb26a478932dec7a8e4548b7c69edd0b049df24fe8ae3fea25e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]     Checking minicdn_core v0.2.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling minicdn_macros v0.2.1
[INFO] [stderr]     Checking minicdn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.34s
[INFO] running `Command { std: "docker" "inspect" "868e7f25c201eb26a478932dec7a8e4548b7c69edd0b049df24fe8ae3fea25e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "868e7f25c201eb26a478932dec7a8e4548b7c69edd0b049df24fe8ae3fea25e4", kill_on_drop: false }`
[INFO] [stdout] 868e7f25c201eb26a478932dec7a8e4548b7c69edd0b049df24fe8ae3fea25e4
[INFO] checking minicdn-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate minicdn 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate minicdn 0.2.1 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 minicdn 0.2.1
[INFO] finished tweaking crates.io crate minicdn 0.2.1
[INFO] tweaked toml for crates.io crate minicdn 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate minicdn 0.2.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 76b8b613ab4ba2520d4c7b88208c2e0f9bd80f377138ae14358c59b990d71fcc
[INFO] running `Command { std: "docker" "start" "-a" "76b8b613ab4ba2520d4c7b88208c2e0f9bd80f377138ae14358c59b990d71fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b8b613ab4ba2520d4c7b88208c2e0f9bd80f377138ae14358c59b990d71fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b8b613ab4ba2520d4c7b88208c2e0f9bd80f377138ae14358c59b990d71fcc", kill_on_drop: false }`
[INFO] [stdout] 76b8b613ab4ba2520d4c7b88208c2e0f9bd80f377138ae14358c59b990d71fcc
[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] 1a4c9e8d4ad0730eab25f80a12d278641b168fd0204e6c305b26b956c379d5cc
[INFO] running `Command { std: "docker" "start" "-a" "1a4c9e8d4ad0730eab25f80a12d278641b168fd0204e6c305b26b956c379d5cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking minicdn_core v0.2.0
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling minicdn_macros v0.2.1
[INFO] [stderr]     Checking minicdn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "1a4c9e8d4ad0730eab25f80a12d278641b168fd0204e6c305b26b956c379d5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a4c9e8d4ad0730eab25f80a12d278641b168fd0204e6c305b26b956c379d5cc", kill_on_drop: false }`
[INFO] [stdout] 1a4c9e8d4ad0730eab25f80a12d278641b168fd0204e6c305b26b956c379d5cc