[INFO] fetching crate dirscan 1.4.1...
[INFO] checking dirscan-1.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dirscan 1.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate dirscan 1.4.1 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 dirscan 1.4.1
[INFO] finished tweaking crates.io crate dirscan 1.4.1
[INFO] tweaked toml for crates.io crate dirscan 1.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate dirscan 1.4.1 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 strum v0.20.0
[INFO] [stderr]   Downloaded prettytable-rs v0.8.0
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded strum_macros v0.20.1
[INFO] [stderr]   Downloaded serde_derive v1.0.144
[INFO] [stderr]   Downloaded iana-time-zone v0.1.47
[INFO] [stderr]   Downloaded chrono-humanize v0.1.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.11
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.10
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded rayon v1.5.3
[INFO] [stderr]   Downloaded nix v0.20.2
[INFO] [stderr]   Downloaded rayon-core v1.9.3
[INFO] [stderr]   Downloaded serde_json v1.0.85
[INFO] [stderr]   Downloaded unicode-segmentation v1.9.0
[INFO] [stderr]   Downloaded serde v1.0.144
[INFO] [stderr]   Downloaded console v0.14.1
[INFO] [stderr]   Downloaded filesize v0.2.0
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded indicatif v0.15.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.6
[INFO] [stderr]   Downloaded crossbeam v0.8.2
[INFO] [stderr]   Downloaded jwalk v0.6.0
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded arrayvec v0.5.2
[INFO] [stderr]   Downloaded blake2b_simd v0.5.11
[INFO] [stderr]   Downloaded once_cell v1.14.0
[INFO] [stderr]   Downloaded rust-argon2 v0.8.3
[INFO] [stderr]   Downloaded redox_users v0.3.5
[INFO] [stderr]   Downloaded dirs v1.0.5
[INFO] [stderr]   Downloaded term v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e6b98e249a360fd45412f7533a53724060d91e427cd09c49673f69d963f550fe
[INFO] running `Command { std: "docker" "start" "-a" "e6b98e249a360fd45412f7533a53724060d91e427cd09c49673f69d963f550fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6b98e249a360fd45412f7533a53724060d91e427cd09c49673f69d963f550fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b98e249a360fd45412f7533a53724060d91e427cd09c49673f69d963f550fe", kill_on_drop: false }`
[INFO] [stdout] e6b98e249a360fd45412f7533a53724060d91e427cd09c49673f69d963f550fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 33c22c1368ea57ddceb31411fddbe66ff15550a0474ba37630a180991a2365dc
[INFO] running `Command { std: "docker" "start" "-a" "33c22c1368ea57ddceb31411fddbe66ff15550a0474ba37630a180991a2365dc", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking filesize v0.2.0
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking jwalk v0.6.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking chrono-humanize v0.1.2
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking dirscan v1.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.51s
[INFO] running `Command { std: "docker" "inspect" "33c22c1368ea57ddceb31411fddbe66ff15550a0474ba37630a180991a2365dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c22c1368ea57ddceb31411fddbe66ff15550a0474ba37630a180991a2365dc", kill_on_drop: false }`
[INFO] [stdout] 33c22c1368ea57ddceb31411fddbe66ff15550a0474ba37630a180991a2365dc
[INFO] checking dirscan-1.4.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate dirscan 1.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate dirscan 1.4.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dirscan 1.4.1
[INFO] finished tweaking crates.io crate dirscan 1.4.1
[INFO] tweaked toml for crates.io crate dirscan 1.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate dirscan 1.4.1 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d47558af5612a125bdb516e1e6c5b7dbe12d12eb8f8a8021d5178531388814
[INFO] running `Command { std: "docker" "start" "-a" "74d47558af5612a125bdb516e1e6c5b7dbe12d12eb8f8a8021d5178531388814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d47558af5612a125bdb516e1e6c5b7dbe12d12eb8f8a8021d5178531388814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d47558af5612a125bdb516e1e6c5b7dbe12d12eb8f8a8021d5178531388814", kill_on_drop: false }`
[INFO] [stdout] 74d47558af5612a125bdb516e1e6c5b7dbe12d12eb8f8a8021d5178531388814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed012938230084987c848ab090cce0a7f320689990cbf262a1e78daaa05a97a4
[INFO] running `Command { std: "docker" "start" "-a" "ed012938230084987c848ab090cce0a7f320689990cbf262a1e78daaa05a97a4", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking filesize v0.2.0
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking jwalk v0.6.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking chrono-humanize v0.1.2
[INFO] [stderr]     Checking dirscan v1.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.54s
[INFO] running `Command { std: "docker" "inspect" "ed012938230084987c848ab090cce0a7f320689990cbf262a1e78daaa05a97a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed012938230084987c848ab090cce0a7f320689990cbf262a1e78daaa05a97a4", kill_on_drop: false }`
[INFO] [stdout] ed012938230084987c848ab090cce0a7f320689990cbf262a1e78daaa05a97a4