[INFO] fetching crate err-context 0.1.0...
[INFO] testing err-context-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate err-context 0.1.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate err-context 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate err-context 0.1.0
[INFO] finished tweaking crates.io crate err-context 0.1.0
[INFO] tweaked toml for crates.io crate err-context 0.1.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "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 aho-corasick v0.7.18
[INFO] [stderr]   Downloaded url v1.7.2
[INFO] [stderr]   Downloaded itertools v0.8.2
[INFO] [stderr]   Downloaded idna v0.1.5
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded backtrace v0.3.64
[INFO] [stderr]   Downloaded object v0.27.1
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded matches v0.1.9
[INFO] [stderr]   Downloaded semver-parser v0.9.0
[INFO] [stderr]   Downloaded percent-encoding v1.0.1
[INFO] [stderr]   Downloaded version-sync v0.8.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.4.1
[INFO] [stderr]   Downloaded gimli v0.26.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6858b20c85f889da925a5b1d083356ac461c623a0a6632e6e478403010374842
[INFO] running `Command { std: "docker" "start" "-a" "6858b20c85f889da925a5b1d083356ac461c623a0a6632e6e478403010374842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6858b20c85f889da925a5b1d083356ac461c623a0a6632e6e478403010374842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6858b20c85f889da925a5b1d083356ac461c623a0a6632e6e478403010374842", kill_on_drop: false }`
[INFO] [stdout] 6858b20c85f889da925a5b1d083356ac461c623a0a6632e6e478403010374842
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa3fe449e798aef0f0825282cd2ce54fcacf33546a1b06f0aa500114372c8915
[INFO] running `Command { std: "docker" "start" "-a" "aa3fe449e798aef0f0825282cd2ce54fcacf33546a1b06f0aa500114372c8915", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling err-context v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.28s
[INFO] running `Command { std: "docker" "inspect" "aa3fe449e798aef0f0825282cd2ce54fcacf33546a1b06f0aa500114372c8915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3fe449e798aef0f0825282cd2ce54fcacf33546a1b06f0aa500114372c8915", kill_on_drop: false }`
[INFO] [stdout] aa3fe449e798aef0f0825282cd2ce54fcacf33546a1b06f0aa500114372c8915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a25866943a8884ec4cc06b30ae06dec75b56150484daf67653f9fe4a240bef8a
[INFO] running `Command { std: "docker" "start" "-a" "a25866943a8884ec4cc06b30ae06dec75b56150484daf67653f9fe4a240bef8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling version-sync v0.8.1
[INFO] [stderr]    Compiling err-context v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `Command { std: "docker" "inspect" "a25866943a8884ec4cc06b30ae06dec75b56150484daf67653f9fe4a240bef8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25866943a8884ec4cc06b30ae06dec75b56150484daf67653f9fe4a240bef8a", kill_on_drop: false }`
[INFO] [stdout] a25866943a8884ec4cc06b30ae06dec75b56150484daf67653f9fe4a240bef8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] df396408fe3becdf0c6308ef129b104fa357686df64d1a53d024f5c2eb689f37
[INFO] running `Command { std: "docker" "start" "-a" "df396408fe3becdf0c6308ef129b104fa357686df64d1a53d024f5c2eb689f37", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/err_context-266afa4091601c9a)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::display_chain ... ok
[INFO] [stdout] test tests::find_dummy ... ok
[INFO] [stdout] test tests::iter_chain ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/version.rs (/opt/rustwide/target/debug/deps/version-614565b9d53c8f47)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_readme_deps ... ok
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests err-context
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - prelude (line 539) ... ok
[INFO] [stdout] test src/lib.rs - (line 117) ... ok
[INFO] [stdout] test src/lib.rs - (line 144) ... ok
[INFO] [stdout] test src/lib.rs - (line 131) ... ok
[INFO] [stdout] test src/lib.rs - (line 107) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df396408fe3becdf0c6308ef129b104fa357686df64d1a53d024f5c2eb689f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df396408fe3becdf0c6308ef129b104fa357686df64d1a53d024f5c2eb689f37", kill_on_drop: false }`
[INFO] [stdout] df396408fe3becdf0c6308ef129b104fa357686df64d1a53d024f5c2eb689f37