[INFO] cloning repository https://github.com/rust-lang-nursery/crater
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/crater" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24754820fdf522b723e8f679c981ab25a13fa748
[INFO] checking rust-lang-nursery/crater against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Fcrater" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang-nursery/crater on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rust-lang-nursery/crater
[INFO] finished tweaking git repo https://github.com/rust-lang-nursery/crater
[INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/crater written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang-nursery/crater already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded urlencoding v1.1.1
[INFO] [stderr]   Downloaded unicode-normalization v0.1.16
[INFO] [stderr]   Downloaded input_buffer v0.2.0
[INFO] [stderr]   Downloaded miow v0.3.6
[INFO] [stderr]   Downloaded futures-util v0.3.8
[INFO] [stderr]   Downloaded libssh2-sys v0.2.20
[INFO] [stderr]   Downloaded predicates-core v1.0.0
[INFO] [stderr]   Downloaded dotenv v0.13.0
[INFO] [stderr]   Downloaded lock_api v0.4.2
[INFO] [stderr]   Downloaded tokio-stream v0.1.2
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded nix v0.18.0
[INFO] [stderr]   Downloaded assert_cmd v1.0.2
[INFO] [stderr]   Downloaded paste v0.1.18
[INFO] [stderr]   Downloaded lru-cache v0.1.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.0
[INFO] [stderr]   Downloaded rayon-core v1.9.0
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded macro-utils v0.1.3
[INFO] [stderr]   Downloaded memoffset v0.6.3
[INFO] [stderr]   Downloaded fixedbitset v0.1.9
[INFO] [stderr]   Downloaded chrono-humanize v0.1.1
[INFO] [stderr]   Downloaded crypto-mac v0.5.2
[INFO] [stderr]   Downloaded cargo_metadata v0.12.1
[INFO] [stderr]   Downloaded smartstring v0.2.5
[INFO] [stderr]   Downloaded mio v0.7.7
[INFO] [stderr]   Downloaded predicates-tree v1.0.0
[INFO] [stderr]   Downloaded cloudabi v0.1.0
[INFO] [stderr]   Downloaded md5 v0.3.8
[INFO] [stderr]   Downloaded prometheus v0.7.0
[INFO] [stderr]   Downloaded rayon v1.5.0
[INFO] [stderr]   Downloaded rustwide v0.13.1
[INFO] [stderr]   Downloaded protobuf v2.18.1
[INFO] [stderr]   Downloaded dirs v1.0.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.3
[INFO] [stderr]   Downloaded unic-ucd-version v0.7.0
[INFO] [stderr]   Downloaded rusqlite v0.15.0
[INFO] [stderr]   Downloaded r2d2 v0.8.9
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.5
[INFO] [stderr]   Downloaded ordermap v0.3.5
[INFO] [stderr]   Downloaded backtrace v0.3.55
[INFO] [stderr]   Downloaded crates-index v0.16.2
[INFO] [stderr]   Downloaded csv v1.1.4
[INFO] [stderr]   Downloaded encoding_rs v0.8.26
[INFO] [stderr]   Downloaded attohttpc v0.16.1
[INFO] [stderr]   Downloaded rusoto_core v0.35.0
[INFO] [stderr]   Downloaded libc v0.2.93
[INFO] [stderr]   Downloaded petgraph v0.4.13
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded smallvec v1.5.0
[INFO] [stderr]   Downloaded remove_dir_all v0.7.0
[INFO] [stderr]   Downloaded rusoto_s3 v0.35.0
[INFO] [stderr]   Downloaded native-tls v0.2.6
[INFO] [stderr]   Downloaded systemstat v0.1.6
[INFO] [stderr]   Downloaded pin-project-internal v1.0.2
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.2
[INFO] [stderr]   Downloaded paste-impl v0.1.18
[INFO] [stderr]   Downloaded sha2 v0.7.1
[INFO] [stderr]   Downloaded parking_lot_core v0.8.0
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded bitvec v0.19.4
[INFO] [stderr]   Downloaded minifier v0.0.20
[INFO] [stderr]   Downloaded ctrlc v3.1.7
[INFO] [stderr]   Downloaded form_urlencoded v1.0.0
[INFO] [stderr]   Downloaded libsqlite3-sys v0.10.0
[INFO] [stderr]   Downloaded git2 v0.13.12
[INFO] [stderr]   Downloaded unic-ucd-segment v0.7.0
[INFO] [stderr]   Downloaded headers-core v0.1.1
[INFO] [stderr]   Downloaded lexical-core v0.7.6
[INFO] [stderr]   Downloaded futures-task v0.3.8
[INFO] [stderr]   Downloaded nom v6.0.1
[INFO] [stderr]   Downloaded humansize v1.1.0
[INFO] [stderr]   Downloaded unic-char-range v0.7.0
[INFO] [stderr]   Downloaded unic-segment v0.7.0
[INFO] [stderr]   Downloaded xml-rs v0.7.0
[INFO] [stderr]   Downloaded security-framework-sys v2.0.0
[INFO] [stderr]   Downloaded funty v1.0.1
[INFO] [stderr]   Downloaded toml v0.5.7
[INFO] [stderr]   Downloaded libgit2-sys v0.12.14+1.1.0
[INFO] [stderr]   Downloaded tokio v1.1.0
[INFO] [stderr]   Downloaded rusoto_credential v0.14.0
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded object v0.22.0
[INFO] [stderr]   Downloaded twoway v0.1.8
[INFO] [stderr]   Downloaded tungstenite v0.9.2
[INFO] [stderr]   Downloaded base64 v0.11.0
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded r2d2_sqlite v0.7.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.22
[INFO] [stderr]   Downloaded thiserror v1.0.22
[INFO] [stderr]   Downloaded futures-core v0.3.8
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded serde_regex v0.3.1
[INFO] [stderr]   Downloaded bytesize v1.0.1
[INFO] [stderr]   Downloaded tap v1.0.0
[INFO] [stderr]   Downloaded addr2line v0.14.0
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded unic-char-property v0.7.0
[INFO] [stderr]   Downloaded unic-common v0.7.0
[INFO] [stderr]   Downloaded tera v0.11.20
[INFO] [stderr]   Downloaded headers v0.2.3
[INFO] [stderr]   Downloaded tinyvec v1.1.0
[INFO] [stderr]   Downloaded url v2.2.0
[INFO] [stderr]   Downloaded warp v0.1.23
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded predicates v1.0.5
[INFO] [stderr]   Downloaded hmac v0.5.0
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded security-framework v2.0.0
[INFO] [stderr]   Downloaded wildmatch v1.0.13
[INFO] [stderr]   Downloaded futures-macro v0.3.8
[INFO] [stderr]   Downloaded pin-project v1.0.2
[INFO] [stderr]   Downloaded nix v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a5e958999c25b86f8b5fb92245f51c4dbc2028b1375de12a071781f7cc1d6e7
[INFO] running `Command { std: "docker" "start" "-a" "0a5e958999c25b86f8b5fb92245f51c4dbc2028b1375de12a071781f7cc1d6e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a5e958999c25b86f8b5fb92245f51c4dbc2028b1375de12a071781f7cc1d6e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5e958999c25b86f8b5fb92245f51c4dbc2028b1375de12a071781f7cc1d6e7", kill_on_drop: false }`
[INFO] [stdout] 0a5e958999c25b86f8b5fb92245f51c4dbc2028b1375de12a071781f7cc1d6e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d8775aceeddbb9d1a5ebcc6790bf406ce96813460599cf5175f1d30fa410097
[INFO] running `Command { std: "docker" "start" "-a" "3d8775aceeddbb9d1a5ebcc6790bf406ce96813460599cf5175f1d30fa410097", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "3d8775aceeddbb9d1a5ebcc6790bf406ce96813460599cf5175f1d30fa410097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d8775aceeddbb9d1a5ebcc6790bf406ce96813460599cf5175f1d30fa410097", kill_on_drop: false }`
[INFO] [stdout] 3d8775aceeddbb9d1a5ebcc6790bf406ce96813460599cf5175f1d30fa410097