[INFO] fetching crate docker-bisect 0.1.0...
[INFO] checking docker-bisect-0.1.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate docker-bisect 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate docker-bisect 0.1.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docker-bisect 0.1.0
[INFO] finished tweaking crates.io crate docker-bisect 0.1.0
[INFO] tweaked toml for crates.io crate docker-bisect 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--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 dockworker v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e44629a7f8d26c66ef07be4ff839c7fe40db2d23cf5f40f2983884dfe57b7d58
[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" "e44629a7f8d26c66ef07be4ff839c7fe40db2d23cf5f40f2983884dfe57b7d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e44629a7f8d26c66ef07be4ff839c7fe40db2d23cf5f40f2983884dfe57b7d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44629a7f8d26c66ef07be4ff839c7fe40db2d23cf5f40f2983884dfe57b7d58", kill_on_drop: false }`
[INFO] [stdout] e44629a7f8d26c66ef07be4ff839c7fe40db2d23cf5f40f2983884dfe57b7d58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a20fe56915725cfb6fc8e605bdca54b89015cfb0ea276dd533184bb6984a4748
[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" "a20fe56915725cfb6fc8e605bdca54b89015cfb0ea276dd533184bb6984a4748", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking console v0.12.0
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking indicatif v0.10.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking error-chain v0.5.0
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking dockworker v0.0.8
[INFO] [stderr]     Checking docker-bisect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.36s
[INFO] running `Command { std: "docker" "inspect" "a20fe56915725cfb6fc8e605bdca54b89015cfb0ea276dd533184bb6984a4748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20fe56915725cfb6fc8e605bdca54b89015cfb0ea276dd533184bb6984a4748", kill_on_drop: false }`
[INFO] [stdout] a20fe56915725cfb6fc8e605bdca54b89015cfb0ea276dd533184bb6984a4748