[INFO] cloning repository https://github.com/ssanj/hop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ssanj/hop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssanj%2Fhop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssanj%2Fhop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b6fcb51df09705e3829bbd68c9e6d2dbcb47716
[INFO] checking ssanj/hop against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssanj%2Fhop" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ssanj/hop 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 git repo https://github.com/ssanj/hop
[INFO] finished tweaking git repo https://github.com/ssanj/hop
[INFO] tweaked toml for git repo https://github.com/ssanj/hop written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ssanj/hop 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]  Downloading crates ...
[INFO] [stderr]   Downloaded termtree v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7ec25b0086a6198e83f12e23d0edf571c83794bacf346d827ab650778d5ac0b5
[INFO] running `Command { std: "docker" "start" "-a" "7ec25b0086a6198e83f12e23d0edf571c83794bacf346d827ab650778d5ac0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ec25b0086a6198e83f12e23d0edf571c83794bacf346d827ab650778d5ac0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec25b0086a6198e83f12e23d0edf571c83794bacf346d827ab650778d5ac0b5", kill_on_drop: false }`
[INFO] [stdout] 7ec25b0086a6198e83f12e23d0edf571c83794bacf346d827ab650778d5ac0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8ae43a9b7c3ad078c3c1e32d866bd63efc5bef5df7e506f40c22fb2de8deecee
[INFO] running `Command { std: "docker" "start" "-a" "8ae43a9b7c3ad078c3c1e32d866bd63efc5bef5df7e506f40c22fb2de8deecee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking termtree v0.2.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking predicates-tree v1.0.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking predicates v2.0.3
[INFO] [stderr]     Checking hop v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v2.0.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.39s
[INFO] running `Command { std: "docker" "inspect" "8ae43a9b7c3ad078c3c1e32d866bd63efc5bef5df7e506f40c22fb2de8deecee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae43a9b7c3ad078c3c1e32d866bd63efc5bef5df7e506f40c22fb2de8deecee", kill_on_drop: false }`
[INFO] [stdout] 8ae43a9b7c3ad078c3c1e32d866bd63efc5bef5df7e506f40c22fb2de8deecee
[INFO] checking ssanj/hop against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssanj%2Fhop" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ssanj/hop 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 git repo https://github.com/ssanj/hop
[INFO] finished tweaking git repo https://github.com/ssanj/hop
[INFO] tweaked toml for git repo https://github.com/ssanj/hop written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ssanj/hop 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8d3e74407f340dce56d64b6e9f4ef83bbb0b67e3e520fc8048f868b7000bfdb7
[INFO] running `Command { std: "docker" "start" "-a" "8d3e74407f340dce56d64b6e9f4ef83bbb0b67e3e520fc8048f868b7000bfdb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d3e74407f340dce56d64b6e9f4ef83bbb0b67e3e520fc8048f868b7000bfdb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3e74407f340dce56d64b6e9f4ef83bbb0b67e3e520fc8048f868b7000bfdb7", kill_on_drop: false }`
[INFO] [stdout] 8d3e74407f340dce56d64b6e9f4ef83bbb0b67e3e520fc8048f868b7000bfdb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 29e5564999554db63f6937eb966e34d2a8b08a391529d60cad15102ba051d158
[INFO] running `Command { std: "docker" "start" "-a" "29e5564999554db63f6937eb966e34d2a8b08a391529d60cad15102ba051d158", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking termtree v0.2.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking predicates-tree v1.0.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking hop v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates v2.0.3
[INFO] [stderr]     Checking assert_cmd v2.0.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.89s
[INFO] running `Command { std: "docker" "inspect" "29e5564999554db63f6937eb966e34d2a8b08a391529d60cad15102ba051d158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e5564999554db63f6937eb966e34d2a8b08a391529d60cad15102ba051d158", kill_on_drop: false }`
[INFO] [stdout] 29e5564999554db63f6937eb966e34d2a8b08a391529d60cad15102ba051d158