[INFO] fetching crate mail-builder 0.3.0...
[INFO] checking mail-builder-0.3.0 against master#6fc0273b5a57eb78cc00841181113fda3e509478 for pr-112842-1
[INFO] extracting crate mail-builder 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mail-builder 0.3.0 on toolchain 6fc0273b5a57eb78cc00841181113fda3e509478
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mail-builder 0.3.0
[INFO] finished tweaking crates.io crate mail-builder 0.3.0
[INFO] tweaked toml for crates.io crate mail-builder 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate mail-builder 0.3.0 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" "+6fc0273b5a57eb78cc00841181113fda3e509478" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] [stderr]   Downloaded gethostname v0.4.0
[INFO] [stderr]   Downloaded indexmap v1.9.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded ryu v1.0.11
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.4
[INFO] [stderr]   Downloaded serde_yaml v0.9.13
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded mail-parser v0.8.0
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows v0.43.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.31
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.0
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9da027bbd25c3316f1feb3922e4190f7f35afaf6b2826d966873bbb4c11833c4
[INFO] running `Command { std: "docker" "start" "-a" "9da027bbd25c3316f1feb3922e4190f7f35afaf6b2826d966873bbb4c11833c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9da027bbd25c3316f1feb3922e4190f7f35afaf6b2826d966873bbb4c11833c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da027bbd25c3316f1feb3922e4190f7f35afaf6b2826d966873bbb4c11833c4", kill_on_drop: false }`
[INFO] [stdout] 9da027bbd25c3316f1feb3922e4190f7f35afaf6b2826d966873bbb4c11833c4
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6fc0273b5a57eb78cc00841181113fda3e509478" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cc134666022ed347a72395e208b7680071a058604e6f301de224ca50b6c6dee
[INFO] running `Command { std: "docker" "start" "-a" "8cc134666022ed347a72395e208b7680071a058604e6f301de224ca50b6c6dee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking gethostname v0.4.0
[INFO] [stderr]     Checking mail-builder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mail-parser v0.8.0
[INFO] [stderr]     Checking serde_yaml v0.9.13
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.89s
[INFO] running `Command { std: "docker" "inspect" "8cc134666022ed347a72395e208b7680071a058604e6f301de224ca50b6c6dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc134666022ed347a72395e208b7680071a058604e6f301de224ca50b6c6dee", kill_on_drop: false }`
[INFO] [stdout] 8cc134666022ed347a72395e208b7680071a058604e6f301de224ca50b6c6dee