[INFO] cloning repository https://github.com/mofeimw/pez
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mofeimw/pez" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmofeimw%2Fpez", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmofeimw%2Fpez'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ca9a7fd3be33d7a7dc9a3d83498d15ae7322b40
[INFO] checking mofeimw/pez against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmofeimw%2Fpez" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mofeimw/pez 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 git repo https://github.com/mofeimw/pez
[INFO] finished tweaking git repo https://github.com/mofeimw/pez
[INFO] tweaked toml for git repo https://github.com/mofeimw/pez written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mofeimw/pez 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rdev v0.5.1
[INFO] [stderr]   Downloaded arboard v2.1.0
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded x11 v2.19.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4651d606f8738bd6b6653c001d64417afb0b3151e62e650b19dad07f6da8b52e
[INFO] running `Command { std: "docker" "start" "-a" "4651d606f8738bd6b6653c001d64417afb0b3151e62e650b19dad07f6da8b52e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4651d606f8738bd6b6653c001d64417afb0b3151e62e650b19dad07f6da8b52e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4651d606f8738bd6b6653c001d64417afb0b3151e62e650b19dad07f6da8b52e", kill_on_drop: false }`
[INFO] [stdout] 4651d606f8738bd6b6653c001d64417afb0b3151e62e650b19dad07f6da8b52e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 50dd3a7c48a2447066ad67aae25a8cd5540e2fc9645c5aeeecceee10a34fb5ca
[INFO] running `Command { std: "docker" "start" "-a" "50dd3a7c48a2447066ad67aae25a8cd5540e2fc9645c5aeeecceee10a34fb5ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling x11 v2.19.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking rdev v0.5.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking x11rb v0.9.0
[INFO] [stderr]     Checking arboard v2.1.0
[INFO] [stderr]     Checking pez v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.95s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: daemonize v0.4.1
[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" "50dd3a7c48a2447066ad67aae25a8cd5540e2fc9645c5aeeecceee10a34fb5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50dd3a7c48a2447066ad67aae25a8cd5540e2fc9645c5aeeecceee10a34fb5ca", kill_on_drop: false }`
[INFO] [stdout] 50dd3a7c48a2447066ad67aae25a8cd5540e2fc9645c5aeeecceee10a34fb5ca
[INFO] checking mofeimw/pez against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmofeimw%2Fpez" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mofeimw/pez 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 git repo https://github.com/mofeimw/pez
[INFO] finished tweaking git repo https://github.com/mofeimw/pez
[INFO] tweaked toml for git repo https://github.com/mofeimw/pez written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mofeimw/pez 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 44b4a37ba33f16223f4a51d161b5dbf15840223cba7da8de4336819a5cff69e3
[INFO] running `Command { std: "docker" "start" "-a" "44b4a37ba33f16223f4a51d161b5dbf15840223cba7da8de4336819a5cff69e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44b4a37ba33f16223f4a51d161b5dbf15840223cba7da8de4336819a5cff69e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b4a37ba33f16223f4a51d161b5dbf15840223cba7da8de4336819a5cff69e3", kill_on_drop: false }`
[INFO] [stdout] 44b4a37ba33f16223f4a51d161b5dbf15840223cba7da8de4336819a5cff69e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 02ae9c821b2299d1a5408cec5f4ec511147896c317b37a1803320890db2feb28
[INFO] running `Command { std: "docker" "start" "-a" "02ae9c821b2299d1a5408cec5f4ec511147896c317b37a1803320890db2feb28", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling x11 v2.19.1
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rdev v0.5.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking x11rb v0.9.0
[INFO] [stderr]     Checking arboard v2.1.0
[INFO] [stderr]     Checking pez v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: daemonize v0.4.1
[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" "02ae9c821b2299d1a5408cec5f4ec511147896c317b37a1803320890db2feb28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ae9c821b2299d1a5408cec5f4ec511147896c317b37a1803320890db2feb28", kill_on_drop: false }`
[INFO] [stdout] 02ae9c821b2299d1a5408cec5f4ec511147896c317b37a1803320890db2feb28