[INFO] fetching crate chordclust 0.1.0...
[INFO] checking chordclust-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate chordclust 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate chordclust 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chordclust 0.1.0
[INFO] finished tweaking crates.io crate chordclust 0.1.0
[INFO] tweaked toml for crates.io crate chordclust 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate chordclust 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.118
[INFO] [stderr]   Downloaded strum_macros v0.18.0
[INFO] [stderr]   Downloaded strum v0.18.0
[INFO] [stderr]   Downloaded enum-map-derive v0.4.6
[INFO] [stderr]   Downloaded getset v0.0.9
[INFO] [stderr]   Downloaded newtype_derive v0.1.6
[INFO] [stderr]   Downloaded derive-new v0.5.8
[INFO] [stderr]   Downloaded ordered-float v1.1.1
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded bytecount v0.6.2
[INFO] [stderr]   Downloaded csv-core v0.1.10
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] [stderr]   Downloaded bstr v0.2.14
[INFO] [stderr]   Downloaded libc v0.2.81
[INFO] [stderr]   Downloaded regex-syntax v0.6.21
[INFO] [stderr]   Downloaded csv v1.1.5
[INFO] [stderr]   Downloaded regex v1.4.2
[INFO] [stderr]   Downloaded ndarray v0.13.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded statrs v0.12.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.1
[INFO] [stderr]   Downloaded syn v1.0.55
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded bio v0.32.0
[INFO] [stderr]   Downloaded matrixmultiply v0.2.4
[INFO] [stderr]   Downloaded num-complex v0.2.4
[INFO] [stderr]   Downloaded snafu v0.6.10
[INFO] [stderr]   Downloaded heck v0.3.2
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded multimap v0.8.2
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded bio-types v0.7.0
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded array-macro v1.0.5
[INFO] [stderr]   Downloaded enum-map v0.6.4
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded snafu-derive v0.6.10
[INFO] [stderr]   Downloaded getrandom v0.1.15
[INFO] [stderr]   Downloaded triple_accel v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f225f5fbb86ec496d5d206b9002d37393937c6038ea609efc86d73daff01d7f
[INFO] running `Command { std: "docker" "start" "-a" "2f225f5fbb86ec496d5d206b9002d37393937c6038ea609efc86d73daff01d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f225f5fbb86ec496d5d206b9002d37393937c6038ea609efc86d73daff01d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f225f5fbb86ec496d5d206b9002d37393937c6038ea609efc86d73daff01d7f", kill_on_drop: false }`
[INFO] [stdout] 2f225f5fbb86ec496d5d206b9002d37393937c6038ea609efc86d73daff01d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ab43b788e8c7fed4d7b1f2ad8dcf01c5a24fdf9907d67383380a741434bcee8
[INFO] running `Command { std: "docker" "start" "-a" "3ab43b788e8c7fed4d7b1f2ad8dcf01c5a24fdf9907d67383380a741434bcee8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling bio v0.32.0
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking triple_accel v0.3.4
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking statrs v0.12.0
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]     Checking enum-map v0.6.4
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking multimap v0.8.2
[INFO] [stderr]     Checking bio-types v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bv v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking chordclust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.59s
[INFO] running `Command { std: "docker" "inspect" "3ab43b788e8c7fed4d7b1f2ad8dcf01c5a24fdf9907d67383380a741434bcee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ab43b788e8c7fed4d7b1f2ad8dcf01c5a24fdf9907d67383380a741434bcee8", kill_on_drop: false }`
[INFO] [stdout] 3ab43b788e8c7fed4d7b1f2ad8dcf01c5a24fdf9907d67383380a741434bcee8
[INFO] checking chordclust-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate chordclust 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate chordclust 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chordclust 0.1.0
[INFO] finished tweaking crates.io crate chordclust 0.1.0
[INFO] tweaked toml for crates.io crate chordclust 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate chordclust 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5c4fafe272a0c27e77f580a7d0e3d19d849e0db3513f4266ae43ab13e21cd36
[INFO] running `Command { std: "docker" "start" "-a" "f5c4fafe272a0c27e77f580a7d0e3d19d849e0db3513f4266ae43ab13e21cd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5c4fafe272a0c27e77f580a7d0e3d19d849e0db3513f4266ae43ab13e21cd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c4fafe272a0c27e77f580a7d0e3d19d849e0db3513f4266ae43ab13e21cd36", kill_on_drop: false }`
[INFO] [stdout] f5c4fafe272a0c27e77f580a7d0e3d19d849e0db3513f4266ae43ab13e21cd36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0deb551817e3cc3fd836ff35916175e93fe4a98ebd18ef316cb0d84ce10b178
[INFO] running `Command { std: "docker" "start" "-a" "a0deb551817e3cc3fd836ff35916175e93fe4a98ebd18ef316cb0d84ce10b178", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling bio v0.32.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking triple_accel v0.3.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking statrs v0.12.0
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking enum-map v0.6.4
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bio-types v0.7.0
[INFO] [stderr]     Checking bv v0.11.1
[INFO] [stderr]     Checking multimap v0.8.2
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking chordclust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.02s
[INFO] running `Command { std: "docker" "inspect" "a0deb551817e3cc3fd836ff35916175e93fe4a98ebd18ef316cb0d84ce10b178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0deb551817e3cc3fd836ff35916175e93fe4a98ebd18ef316cb0d84ce10b178", kill_on_drop: false }`
[INFO] [stdout] a0deb551817e3cc3fd836ff35916175e93fe4a98ebd18ef316cb0d84ce10b178