[INFO] fetching crate transitive_frontier 0.1.1...
[INFO] testing transitive_frontier-0.1.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate transitive_frontier 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate transitive_frontier 0.1.1
[INFO] finished tweaking crates.io crate transitive_frontier 0.1.1
[INFO] tweaked toml for crates.io crate transitive_frontier 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate transitive_frontier 0.1.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate transitive_frontier 0.1.1 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.1.17
[INFO] [stderr]   Downloaded itoa v0.4.7
[INFO] [stderr]   Downloaded pathdiff v0.2.0
[INFO] [stderr]   Downloaded pest_generator v2.1.3
[INFO] [stderr]   Downloaded nested v0.1.1
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded cargo_metadata v0.12.1
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded ucd-trie v0.1.3
[INFO] [stderr]   Downloaded toml v0.5.8
[INFO] [stderr]   Downloaded indexmap v1.6.1
[INFO] [stderr]   Downloaded hashbrown v0.9.1
[INFO] [stderr]   Downloaded pest v2.1.3
[INFO] [stderr]   Downloaded guppy v0.6.2
[INFO] [stderr]   Downloaded serde_derive v1.0.118
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded serde_json v1.0.61
[INFO] [stderr]   Downloaded typenum v1.12.0
[INFO] [stderr]   Downloaded semver-parser v0.10.0
[INFO] [stderr]   Downloaded syn v1.0.57
[INFO] [stderr]   Downloaded supercow v0.1.0
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded cfg-expr v0.5.1
[INFO] [stderr]   Downloaded horrorshow v0.7.0
[INFO] [stderr]   Downloaded generic-array v0.12.3
[INFO] [stderr]   Downloaded sha-1 v0.8.2
[INFO] [stderr]   Downloaded pest_meta v2.1.3
[INFO] [stderr]   Downloaded pest_derive v2.1.0
[INFO] [stderr]   Downloaded semver v0.11.0
[INFO] [stderr]   Downloaded target-spec v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.81
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8abfa42a19ce94a2682d6f96aa02fd413a29b3775900d6ba82d2f778698851bd
[INFO] running `Command { std: "docker" "start" "-a" "8abfa42a19ce94a2682d6f96aa02fd413a29b3775900d6ba82d2f778698851bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8abfa42a19ce94a2682d6f96aa02fd413a29b3775900d6ba82d2f778698851bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8abfa42a19ce94a2682d6f96aa02fd413a29b3775900d6ba82d2f778698851bd", kill_on_drop: false }`
[INFO] [stdout] 8abfa42a19ce94a2682d6f96aa02fd413a29b3775900d6ba82d2f778698851bd
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8594429f0318af7d4a5308e4910b7bbe855d40c836795c67ac9ac80d1b275e53
[INFO] running `Command { std: "docker" "start" "-a" "8594429f0318af7d4a5308e4910b7bbe855d40c836795c67ac9ac80d1b275e53", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling target-spec v0.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling cfg-expr v0.5.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling supercow v0.1.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling nested v0.1.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling pathdiff v0.2.0
[INFO] [stderr]    Compiling horrorshow v0.7.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling semver-parser v0.10.0
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cargo_metadata v0.12.1
[INFO] [stderr]    Compiling guppy v0.6.2
[INFO] [stderr]    Compiling transitive_frontier v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.19s
[INFO] running `Command { std: "docker" "inspect" "8594429f0318af7d4a5308e4910b7bbe855d40c836795c67ac9ac80d1b275e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8594429f0318af7d4a5308e4910b7bbe855d40c836795c67ac9ac80d1b275e53", kill_on_drop: false }`
[INFO] [stdout] 8594429f0318af7d4a5308e4910b7bbe855d40c836795c67ac9ac80d1b275e53
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05310444d601a26f1dbe068c13822808bc81c6c4d8397bc7f0314d29a0a4f4e9
[INFO] running `Command { std: "docker" "start" "-a" "05310444d601a26f1dbe068c13822808bc81c6c4d8397bc7f0314d29a0a4f4e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling transitive_frontier v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "05310444d601a26f1dbe068c13822808bc81c6c4d8397bc7f0314d29a0a4f4e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05310444d601a26f1dbe068c13822808bc81c6c4d8397bc7f0314d29a0a4f4e9", kill_on_drop: false }`
[INFO] [stdout] 05310444d601a26f1dbe068c13822808bc81c6c4d8397bc7f0314d29a0a4f4e9
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aaf79767374aecfd9c9f0eeae2faeb077feb37eb27e1034f09256dc8c43df372
[INFO] running `Command { std: "docker" "start" "-a" "aaf79767374aecfd9c9f0eeae2faeb077feb37eb27e1034f09256dc8c43df372", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/transitive_frontier-d8b52426bb9c474e)
[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" "aaf79767374aecfd9c9f0eeae2faeb077feb37eb27e1034f09256dc8c43df372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf79767374aecfd9c9f0eeae2faeb077feb37eb27e1034f09256dc8c43df372", kill_on_drop: false }`
[INFO] [stdout] aaf79767374aecfd9c9f0eeae2faeb077feb37eb27e1034f09256dc8c43df372