[INFO] fetching crate lnkr 0.1.4...
[INFO] checking lnkr-0.1.4 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate lnkr 0.1.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate lnkr 0.1.4 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lnkr 0.1.4
[INFO] finished tweaking crates.io crate lnkr 0.1.4
[INFO] tweaked toml for crates.io crate lnkr 0.1.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate lnkr 0.1.4 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.43
[INFO] [stderr]   Downloaded thiserror-impl v1.0.43
[INFO] [stderr]   Downloaded serde_yaml v0.9.22
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.8
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2185440f826705a545de7671768f57e54620dc53c9e1cc81fd25a247f1e4d806
[INFO] running `Command { std: "docker" "start" "-a" "2185440f826705a545de7671768f57e54620dc53c9e1cc81fd25a247f1e4d806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2185440f826705a545de7671768f57e54620dc53c9e1cc81fd25a247f1e4d806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2185440f826705a545de7671768f57e54620dc53c9e1cc81fd25a247f1e4d806", kill_on_drop: false }`
[INFO] [stdout] 2185440f826705a545de7671768f57e54620dc53c9e1cc81fd25a247f1e4d806
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c36b574cde748c8a2a045ade313ad2d68eef2a24d2697511a315486d2ec8586
[INFO] running `Command { std: "docker" "start" "-a" "5c36b574cde748c8a2a045ade313ad2d68eef2a24d2697511a315486d2ec8586", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]     Checking equivalent v1.0.0
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]     Checking serde_yaml v0.9.22
[INFO] [stderr]     Checking lnkr v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.41s
[INFO] running `Command { std: "docker" "inspect" "5c36b574cde748c8a2a045ade313ad2d68eef2a24d2697511a315486d2ec8586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c36b574cde748c8a2a045ade313ad2d68eef2a24d2697511a315486d2ec8586", kill_on_drop: false }`
[INFO] [stdout] 5c36b574cde748c8a2a045ade313ad2d68eef2a24d2697511a315486d2ec8586
[INFO] checking lnkr-0.1.4 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate lnkr 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate lnkr 0.1.4 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lnkr 0.1.4
[INFO] finished tweaking crates.io crate lnkr 0.1.4
[INFO] tweaked toml for crates.io crate lnkr 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate lnkr 0.1.4 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e061bb321427d21b48790edfadb29a144a2930feb8c5dd689dbcb7ab854cba9f
[INFO] running `Command { std: "docker" "start" "-a" "e061bb321427d21b48790edfadb29a144a2930feb8c5dd689dbcb7ab854cba9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e061bb321427d21b48790edfadb29a144a2930feb8c5dd689dbcb7ab854cba9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e061bb321427d21b48790edfadb29a144a2930feb8c5dd689dbcb7ab854cba9f", kill_on_drop: false }`
[INFO] [stdout] e061bb321427d21b48790edfadb29a144a2930feb8c5dd689dbcb7ab854cba9f
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3a5c7401a9ea5f948c068dc5ea14956e42c23b49a3a1197116c3bf4cd2ccef4
[INFO] running `Command { std: "docker" "start" "-a" "b3a5c7401a9ea5f948c068dc5ea14956e42c23b49a3a1197116c3bf4cd2ccef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]     Checking equivalent v1.0.0
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]     Checking serde_yaml v0.9.22
[INFO] [stderr]     Checking lnkr v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.05s
[INFO] running `Command { std: "docker" "inspect" "b3a5c7401a9ea5f948c068dc5ea14956e42c23b49a3a1197116c3bf4cd2ccef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a5c7401a9ea5f948c068dc5ea14956e42c23b49a3a1197116c3bf4cd2ccef4", kill_on_drop: false }`
[INFO] [stdout] b3a5c7401a9ea5f948c068dc5ea14956e42c23b49a3a1197116c3bf4cd2ccef4