[INFO] fetching crate cargo-explain 1.0.0...
[INFO] testing cargo-explain-1.0.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate cargo-explain 1.0.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate cargo-explain 1.0.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-explain 1.0.0
[INFO] finished tweaking crates.io crate cargo-explain 1.0.0
[INFO] tweaked toml for crates.io crate cargo-explain 1.0.0 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate cargo-explain 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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 markdown v0.3.0
[INFO] [stderr]   Downloaded indexmap v1.5.2
[INFO] [stderr]   Downloaded pipeline v0.5.0
[INFO] [stderr]   Downloaded syntect v4.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf62a54e0595d9efb9ebcd82de87d676a913cc3bf1b3332ef6e92d8d0c0a0744
[INFO] running `Command { std: "docker" "start" "-a" "cf62a54e0595d9efb9ebcd82de87d676a913cc3bf1b3332ef6e92d8d0c0a0744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf62a54e0595d9efb9ebcd82de87d676a913cc3bf1b3332ef6e92d8d0c0a0744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf62a54e0595d9efb9ebcd82de87d676a913cc3bf1b3332ef6e92d8d0c0a0744", kill_on_drop: false }`
[INFO] [stdout] cf62a54e0595d9efb9ebcd82de87d676a913cc3bf1b3332ef6e92d8d0c0a0744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d55e7fdafdf2b5d738eeee000da1f1efe7992bc2ca323422de785907dc2b635
[INFO] running `Command { std: "docker" "start" "-a" "5d55e7fdafdf2b5d738eeee000da1f1efe7992bc2ca323422de785907dc2b635", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pipeline v0.5.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.1
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling onig_sys v69.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling flate2 v1.0.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling markdown v0.3.0
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling plist v1.0.0
[INFO] [stderr]    Compiling onig v6.0.0
[INFO] [stderr]    Compiling syntect v4.4.0
[INFO] [stderr]    Compiling cargo-explain v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.90s
[INFO] running `Command { std: "docker" "inspect" "5d55e7fdafdf2b5d738eeee000da1f1efe7992bc2ca323422de785907dc2b635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d55e7fdafdf2b5d738eeee000da1f1efe7992bc2ca323422de785907dc2b635", kill_on_drop: false }`
[INFO] [stdout] 5d55e7fdafdf2b5d738eeee000da1f1efe7992bc2ca323422de785907dc2b635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84356abbbbc23bdb11a4ca3edd9bef076f4498248df81f168eb0be9c13a0adaa
[INFO] running `Command { std: "docker" "start" "-a" "84356abbbbc23bdb11a4ca3edd9bef076f4498248df81f168eb0be9c13a0adaa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cargo-explain v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "84356abbbbc23bdb11a4ca3edd9bef076f4498248df81f168eb0be9c13a0adaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84356abbbbc23bdb11a4ca3edd9bef076f4498248df81f168eb0be9c13a0adaa", kill_on_drop: false }`
[INFO] [stdout] 84356abbbbc23bdb11a4ca3edd9bef076f4498248df81f168eb0be9c13a0adaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bed5a9506af47ca1b78c4b4126711cc316bb666cb0835c824a79590d0bb56cb6
[INFO] running `Command { std: "docker" "start" "-a" "bed5a9506af47ca1b78c4b4126711cc316bb666cb0835c824a79590d0bb56cb6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_explain-377936c8a9d29c8b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bed5a9506af47ca1b78c4b4126711cc316bb666cb0835c824a79590d0bb56cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bed5a9506af47ca1b78c4b4126711cc316bb666cb0835c824a79590d0bb56cb6", kill_on_drop: false }`
[INFO] [stdout] bed5a9506af47ca1b78c4b4126711cc316bb666cb0835c824a79590d0bb56cb6