[INFO] fetching crate imag-mail 0.10.1...
[INFO] checking imag-mail-0.10.1 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate imag-mail 0.10.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate imag-mail 0.10.1 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imag-mail 0.10.1
[INFO] finished tweaking crates.io crate imag-mail 0.10.1
[INFO] tweaked toml for crates.io crate imag-mail 0.10.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate imag-mail 0.10.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c3c0465e35748699214e9226664a230dfb7192f89a3d6ba664ceb41bfc8cdcd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c3c0465e35748699214e9226664a230dfb7192f89a3d6ba664ceb41bfc8cdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c3c0465e35748699214e9226664a230dfb7192f89a3d6ba664ceb41bfc8cdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c3c0465e35748699214e9226664a230dfb7192f89a3d6ba664ceb41bfc8cdcd", kill_on_drop: false }`
[INFO] [stdout] 7c3c0465e35748699214e9226664a230dfb7192f89a3d6ba664ceb41bfc8cdcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b85c72cd25007d8913ad7dbc7d9f183992bb36296247231dbd1589d539e47ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b85c72cd25007d8913ad7dbc7d9f183992bb36296247231dbd1589d539e47ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]     Checking quoted_printable v0.4.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking interactor v0.1.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking handlebars v2.0.4
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking toml-query v0.9.2
[INFO] [stderr]     Checking libimagerror v0.10.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking charset v0.1.2
[INFO] [stderr]     Checking mailparse v0.8.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking libimagutil v0.10.1
[INFO] [stderr]     Checking libimagstore v0.10.1
[INFO] [stderr]     Checking libimagentryutil v0.10.1
[INFO] [stderr]     Checking libimaginteraction v0.10.1
[INFO] [stderr]     Checking libimagrt v0.10.1
[INFO] [stderr]     Checking libimagentryref v0.10.1
[INFO] [stderr]     Checking libimagmail v0.10.1
[INFO] [stderr]     Checking imag-mail v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.98s
[INFO] running `Command { std: "docker" "inspect" "8b85c72cd25007d8913ad7dbc7d9f183992bb36296247231dbd1589d539e47ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b85c72cd25007d8913ad7dbc7d9f183992bb36296247231dbd1589d539e47ae", kill_on_drop: false }`
[INFO] [stdout] 8b85c72cd25007d8913ad7dbc7d9f183992bb36296247231dbd1589d539e47ae