[INFO] cloning repository https://github.com/red-dal/rusty_ladder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/red-dal/rusty_ladder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fred-dal%2Frusty_ladder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fred-dal%2Frusty_ladder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 314e105c8c4e9b53007cf62b3c52612ee0a9440f
[INFO] building red-dal/rusty_ladder against master#a7f375789bab1a4e4a291c963081a8ca7d2b6bd7 for pr-93180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fred-dal%2Frusty_ladder" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/red-dal/rusty_ladder on toolchain a7f375789bab1a4e4a291c963081a8ca7d2b6bd7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/red-dal/rusty_ladder
[INFO] finished tweaking git repo https://github.com/red-dal/rusty_ladder
[INFO] tweaked toml for git repo https://github.com/red-dal/rusty_ladder written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/red-dal/rusty_ladder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6f31df768dda0224991ff3c25822f5a6e5558fd214c8a708ad2db9b9d01440c
[INFO] running `Command { std: "docker" "start" "-a" "e6f31df768dda0224991ff3c25822f5a6e5558fd214c8a708ad2db9b9d01440c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6f31df768dda0224991ff3c25822f5a6e5558fd214c8a708ad2db9b9d01440c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f31df768dda0224991ff3c25822f5a6e5558fd214c8a708ad2db9b9d01440c", kill_on_drop: false }`
[INFO] [stdout] e6f31df768dda0224991ff3c25822f5a6e5558fd214c8a708ad2db9b9d01440c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5898bf58bfdf73d820333af07a34f8bcebff063f7371a5bd036cb919921f922e
[INFO] running `Command { std: "docker" "start" "-a" "5898bf58bfdf73d820333af07a34f8bcebff063f7371a5bd036cb919921f922e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling tokio-openssl v0.6.3
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling ladder_lib v0.0.4 (/opt/rustwide/workdir/ladder_lib)
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling exitcode v1.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling input_buffer v0.4.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling time v0.3.5
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling hkdf v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ladder_lib_macro v0.0.1 (/opt/rustwide/workdir/ladder_lib_macro)
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling futures-executor v0.3.19
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling smol_str v0.1.21
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling tungstenite v0.12.0
[INFO] [stderr]    Compiling fern v0.6.0
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling tokio v1.15.0
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling crossterm v0.19.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.5
[INFO] [stderr]    Compiling tui v0.15.0
[INFO] [stderr]    Compiling num_enum v0.5.5
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling async-tungstenite v0.12.0
[INFO] [stderr]    Compiling h2 v0.3.9
[INFO] [stderr]    Compiling rusty_ladder v0.1.3 (/opt/rustwide/workdir/rusty_ladder)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.33s
[INFO] running `Command { std: "docker" "inspect" "5898bf58bfdf73d820333af07a34f8bcebff063f7371a5bd036cb919921f922e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5898bf58bfdf73d820333af07a34f8bcebff063f7371a5bd036cb919921f922e", kill_on_drop: false }`
[INFO] [stdout] 5898bf58bfdf73d820333af07a34f8bcebff063f7371a5bd036cb919921f922e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aafc1e616b8783ef6ad2d92b841e291dfe6c1821b5dc9db137c2a39ea840bdd7
[INFO] running `Command { std: "docker" "start" "-a" "aafc1e616b8783ef6ad2d92b841e291dfe6c1821b5dc9db137c2a39ea840bdd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rusty_ladder v0.1.3 (/opt/rustwide/workdir/rusty_ladder)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "aafc1e616b8783ef6ad2d92b841e291dfe6c1821b5dc9db137c2a39ea840bdd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aafc1e616b8783ef6ad2d92b841e291dfe6c1821b5dc9db137c2a39ea840bdd7", kill_on_drop: false }`
[INFO] [stdout] aafc1e616b8783ef6ad2d92b841e291dfe6c1821b5dc9db137c2a39ea840bdd7