[INFO] fetching crate lsns 0.0.3...
[INFO] checking lsns-0.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lsns 0.0.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate lsns 0.0.3 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 lsns 0.0.3
[INFO] finished tweaking crates.io crate lsns 0.0.3
[INFO] tweaked toml for crates.io crate lsns 0.0.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages
[INFO] [stderr]       Adding bitflags v0.3.3 (latest: v2.5.0)
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding libc v0.1.12 (latest: v0.2.153)
[INFO] [stderr]       Adding nix v0.4.3 (latest: v0.28.0)
[INFO] [stderr]       Adding nom v1.2.4 (latest: v7.1.3)
[INFO] [stderr]       Adding procinfo v0.3.1 (latest: v0.4.2)
[INFO] [stderr]       Adding rustc_version v0.1.7 (latest: v0.4.0)
[INFO] [stderr]       Adding semver v0.1.20 (latest: v1.0.22)
[INFO] [stderr]       Adding unshare v0.1.15 (latest: v0.7.0)
[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 text_io v0.1.12
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] [stderr]   Downloaded nix v0.4.3
[INFO] [stderr]   Downloaded nsutils v0.0.5
[INFO] [stderr]   Downloaded unshare v0.1.15
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e90442749e1e6f7046f63cc611c63e2d0971f494f2748403bb05ad0328959a1
[INFO] running `Command { std: "docker" "start" "-a" "6e90442749e1e6f7046f63cc611c63e2d0971f494f2748403bb05ad0328959a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e90442749e1e6f7046f63cc611c63e2d0971f494f2748403bb05ad0328959a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e90442749e1e6f7046f63cc611c63e2d0971f494f2748403bb05ad0328959a1", kill_on_drop: false }`
[INFO] [stdout] 6e90442749e1e6f7046f63cc611c63e2d0971f494f2748403bb05ad0328959a1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1a71fe42edf8957a8f203080cfdcc514b965186ede5f0d2ef17657ec886e2de
[INFO] running `Command { std: "docker" "start" "-a" "a1a71fe42edf8957a8f203080cfdcc514b965186ede5f0d2ef17657ec886e2de", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking nix v0.4.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling procinfo v0.3.1
[INFO] [stderr]     Checking unshare v0.1.15
[INFO] [stderr]     Checking nsutils v0.0.5
[INFO] [stderr]     Checking lsns v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v1.2.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "a1a71fe42edf8957a8f203080cfdcc514b965186ede5f0d2ef17657ec886e2de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a71fe42edf8957a8f203080cfdcc514b965186ede5f0d2ef17657ec886e2de", kill_on_drop: false }`
[INFO] [stdout] a1a71fe42edf8957a8f203080cfdcc514b965186ede5f0d2ef17657ec886e2de
[INFO] checking lsns-0.0.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate lsns 0.0.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate lsns 0.0.3 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 lsns 0.0.3
[INFO] finished tweaking crates.io crate lsns 0.0.3
[INFO] tweaked toml for crates.io crate lsns 0.0.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 148466b352b51442f016e2fa0ffb8e1699a3be0dcd1e160d82e63a55899a1297
[INFO] running `Command { std: "docker" "start" "-a" "148466b352b51442f016e2fa0ffb8e1699a3be0dcd1e160d82e63a55899a1297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "148466b352b51442f016e2fa0ffb8e1699a3be0dcd1e160d82e63a55899a1297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "148466b352b51442f016e2fa0ffb8e1699a3be0dcd1e160d82e63a55899a1297", kill_on_drop: false }`
[INFO] [stdout] 148466b352b51442f016e2fa0ffb8e1699a3be0dcd1e160d82e63a55899a1297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e2622041e7e00305f3f1e548cd7354f4c391725793b7d73bbd81f23d73e01c85
[INFO] running `Command { std: "docker" "start" "-a" "e2622041e7e00305f3f1e548cd7354f4c391725793b7d73bbd81f23d73e01c85", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking nix v0.4.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling procinfo v0.3.1
[INFO] [stderr]     Checking unshare v0.1.15
[INFO] [stderr]     Checking nsutils v0.0.5
[INFO] [stderr]     Checking lsns v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v1.2.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "e2622041e7e00305f3f1e548cd7354f4c391725793b7d73bbd81f23d73e01c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2622041e7e00305f3f1e548cd7354f4c391725793b7d73bbd81f23d73e01c85", kill_on_drop: false }`
[INFO] [stdout] e2622041e7e00305f3f1e548cd7354f4c391725793b7d73bbd81f23d73e01c85