[INFO] fetching crate jobslot 0.2.14...
[INFO] checking jobslot-0.2.14 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate jobslot 0.2.14 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate jobslot 0.2.14 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 jobslot 0.2.14
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate jobslot 0.2.14
[INFO] tweaked toml for crates.io crate jobslot 0.2.14 written to /workspace/builds/worker-5-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 59 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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] 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] 4d11c400f41179be1cc83a21a5952f30fd5bfec767423da39644a85505edac74
[INFO] running `Command { std: "docker" "start" "-a" "4d11c400f41179be1cc83a21a5952f30fd5bfec767423da39644a85505edac74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d11c400f41179be1cc83a21a5952f30fd5bfec767423da39644a85505edac74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d11c400f41179be1cc83a21a5952f30fd5bfec767423da39644a85505edac74", kill_on_drop: false }`
[INFO] [stdout] 4d11c400f41179be1cc83a21a5952f30fd5bfec767423da39644a85505edac74
[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] aef9a4ba5d48240b6f0066cf183da704474b2aed7fe949b9f93a25ff58e8b196
[INFO] running `Command { std: "docker" "start" "-a" "aef9a4ba5d48240b6f0066cf183da704474b2aed7fe949b9f93a25ff58e8b196", kill_on_drop: false }`
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking jobslot v0.2.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stdout] warning: the item `mpsc` is imported redundantly
[INFO] [stdout]  --> tests/helper.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::mpsc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use std::sync::*;
[INFO] [stdout]   |     ------------ the item `mpsc` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.85s
[INFO] running `Command { std: "docker" "inspect" "aef9a4ba5d48240b6f0066cf183da704474b2aed7fe949b9f93a25ff58e8b196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef9a4ba5d48240b6f0066cf183da704474b2aed7fe949b9f93a25ff58e8b196", kill_on_drop: false }`
[INFO] [stdout] aef9a4ba5d48240b6f0066cf183da704474b2aed7fe949b9f93a25ff58e8b196
[INFO] checking jobslot-0.2.14 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate jobslot 0.2.14 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate jobslot 0.2.14 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 jobslot 0.2.14
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate jobslot 0.2.14
[INFO] tweaked toml for crates.io crate jobslot 0.2.14 written to /workspace/builds/worker-5-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-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] cbb015b37003cce92036b0b85f9e7e6578764a096ceb07a054d4faff5f793cee
[INFO] running `Command { std: "docker" "start" "-a" "cbb015b37003cce92036b0b85f9e7e6578764a096ceb07a054d4faff5f793cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb015b37003cce92036b0b85f9e7e6578764a096ceb07a054d4faff5f793cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb015b37003cce92036b0b85f9e7e6578764a096ceb07a054d4faff5f793cee", kill_on_drop: false }`
[INFO] [stdout] cbb015b37003cce92036b0b85f9e7e6578764a096ceb07a054d4faff5f793cee
[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] d12d015600bd53ea6b0ecf02a5f8e544b2c4f17bfa4eb14a355022680ee4a900
[INFO] running `Command { std: "docker" "start" "-a" "d12d015600bd53ea6b0ecf02a5f8e544b2c4f17bfa4eb14a355022680ee4a900", kill_on_drop: false }`
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking jobslot v0.2.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stdout] warning: the item `mpsc` is imported redundantly
[INFO] [stdout]  --> tests/helper.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::mpsc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use std::sync::*;
[INFO] [stdout]   |     ------------ the item `mpsc` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.70s
[INFO] running `Command { std: "docker" "inspect" "d12d015600bd53ea6b0ecf02a5f8e544b2c4f17bfa4eb14a355022680ee4a900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d12d015600bd53ea6b0ecf02a5f8e544b2c4f17bfa4eb14a355022680ee4a900", kill_on_drop: false }`
[INFO] [stdout] d12d015600bd53ea6b0ecf02a5f8e544b2c4f17bfa4eb14a355022680ee4a900