[INFO] fetching crate codetour_export_to_md 2020.605.1303...
[INFO] checking codetour_export_to_md-2020.605.1303 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate codetour_export_to_md 2020.605.1303 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate codetour_export_to_md 2020.605.1303 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 codetour_export_to_md 2020.605.1303
[INFO] finished tweaking crates.io crate codetour_export_to_md 2020.605.1303
[INFO] tweaked toml for crates.io crate codetour_export_to_md 2020.605.1303 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate codetour_export_to_md 2020.605.1303 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 itoa v0.4.5
[INFO] [stderr]   Downloaded unwrap v1.2.1
[INFO] [stderr]   Downloaded ryu v1.0.4
[INFO] [stderr]   Downloaded serde v1.0.106
[INFO] [stderr]   Downloaded hermit-abi v0.1.12
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded serde_json v1.0.51
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded clap v2.33.0
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded syn v1.0.18
[INFO] [stderr]   Downloaded proc-macro2 v1.0.10
[INFO] [stderr]   Downloaded serde_derive v1.0.106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fe9bf6ebd3d1af3cef6db50544fe4b40bb544d8563973618ba12d6c29d528593
[INFO] running `Command { std: "docker" "start" "-a" "fe9bf6ebd3d1af3cef6db50544fe4b40bb544d8563973618ba12d6c29d528593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe9bf6ebd3d1af3cef6db50544fe4b40bb544d8563973618ba12d6c29d528593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe9bf6ebd3d1af3cef6db50544fe4b40bb544d8563973618ba12d6c29d528593", kill_on_drop: false }`
[INFO] [stdout] fe9bf6ebd3d1af3cef6db50544fe4b40bb544d8563973618ba12d6c29d528593
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 402626064b66e0e24682e3e87f3beaa8ec702691120e6d75e5c79b5f1141d3ac
[INFO] running `Command { std: "docker" "start" "-a" "402626064b66e0e24682e3e87f3beaa8ec702691120e6d75e5c79b5f1141d3ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking codetour_export_to_md v2020.605.1303 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.83s
[INFO] running `Command { std: "docker" "inspect" "402626064b66e0e24682e3e87f3beaa8ec702691120e6d75e5c79b5f1141d3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "402626064b66e0e24682e3e87f3beaa8ec702691120e6d75e5c79b5f1141d3ac", kill_on_drop: false }`
[INFO] [stdout] 402626064b66e0e24682e3e87f3beaa8ec702691120e6d75e5c79b5f1141d3ac
[INFO] checking codetour_export_to_md-2020.605.1303 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate codetour_export_to_md 2020.605.1303 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate codetour_export_to_md 2020.605.1303 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 codetour_export_to_md 2020.605.1303
[INFO] finished tweaking crates.io crate codetour_export_to_md 2020.605.1303
[INFO] tweaked toml for crates.io crate codetour_export_to_md 2020.605.1303 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate codetour_export_to_md 2020.605.1303 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c81a7f0cfc285cf6c16f0b66f4aae3e5141876db9adeac1c67c60afdb041d474
[INFO] running `Command { std: "docker" "start" "-a" "c81a7f0cfc285cf6c16f0b66f4aae3e5141876db9adeac1c67c60afdb041d474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c81a7f0cfc285cf6c16f0b66f4aae3e5141876db9adeac1c67c60afdb041d474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81a7f0cfc285cf6c16f0b66f4aae3e5141876db9adeac1c67c60afdb041d474", kill_on_drop: false }`
[INFO] [stdout] c81a7f0cfc285cf6c16f0b66f4aae3e5141876db9adeac1c67c60afdb041d474
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 47ecd71717a6487ccab7fb9769c2435e78a5b0dd55e2b172fcf7dbdcf0ebe05b
[INFO] running `Command { std: "docker" "start" "-a" "47ecd71717a6487ccab7fb9769c2435e78a5b0dd55e2b172fcf7dbdcf0ebe05b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking codetour_export_to_md v2020.605.1303 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.95s
[INFO] running `Command { std: "docker" "inspect" "47ecd71717a6487ccab7fb9769c2435e78a5b0dd55e2b172fcf7dbdcf0ebe05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ecd71717a6487ccab7fb9769c2435e78a5b0dd55e2b172fcf7dbdcf0ebe05b", kill_on_drop: false }`
[INFO] [stdout] 47ecd71717a6487ccab7fb9769c2435e78a5b0dd55e2b172fcf7dbdcf0ebe05b