[INFO] fetching crate truncated_free_groups 0.1.0...
[INFO] testing truncated_free_groups-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate truncated_free_groups 0.1.0 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate truncated_free_groups 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate truncated_free_groups 0.1.0
[INFO] finished tweaking crates.io crate truncated_free_groups 0.1.0
[INFO] tweaked toml for crates.io crate truncated_free_groups 0.1.0 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded l_group_formulas v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b62f847ed9af77837a6ac9f700a342f1a148018f53ea17be1b9978c0f01d78d6
[INFO] running `Command { std: "docker" "start" "-a" "b62f847ed9af77837a6ac9f700a342f1a148018f53ea17be1b9978c0f01d78d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b62f847ed9af77837a6ac9f700a342f1a148018f53ea17be1b9978c0f01d78d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62f847ed9af77837a6ac9f700a342f1a148018f53ea17be1b9978c0f01d78d6", kill_on_drop: false }`
[INFO] [stdout] b62f847ed9af77837a6ac9f700a342f1a148018f53ea17be1b9978c0f01d78d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29cf79b1886255edab93335f52df1f7f607c34015242775737d6a2e4ec513bd9
[INFO] running `Command { std: "docker" "start" "-a" "29cf79b1886255edab93335f52df1f7f607c34015242775737d6a2e4ec513bd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling l_group_formulas v0.1.0
[INFO] [stderr]    Compiling truncated_free_groups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `verbose`
[INFO] [stdout]   --> src/truncated_subgroup.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     verbose:                 bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.84s
[INFO] running `Command { std: "docker" "inspect" "29cf79b1886255edab93335f52df1f7f607c34015242775737d6a2e4ec513bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29cf79b1886255edab93335f52df1f7f607c34015242775737d6a2e4ec513bd9", kill_on_drop: false }`
[INFO] [stdout] 29cf79b1886255edab93335f52df1f7f607c34015242775737d6a2e4ec513bd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36dc6f3ca5623150041c8dbcae07b4b0c30100c80058c3fab20de4e8598737ee
[INFO] running `Command { std: "docker" "start" "-a" "36dc6f3ca5623150041c8dbcae07b4b0c30100c80058c3fab20de4e8598737ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling truncated_free_groups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `verbose`
[INFO] [stdout]   --> src/truncated_subgroup.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     verbose:                 bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `verbose`
[INFO] [stdout]   --> src/truncated_subgroup.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     verbose:                 bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "36dc6f3ca5623150041c8dbcae07b4b0c30100c80058c3fab20de4e8598737ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36dc6f3ca5623150041c8dbcae07b4b0c30100c80058c3fab20de4e8598737ee", kill_on_drop: false }`
[INFO] [stdout] 36dc6f3ca5623150041c8dbcae07b4b0c30100c80058c3fab20de4e8598737ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 51c21af24ee577ed543b02c30e30351120ab2d50ef3b609a09e57f9ef48aacc9
[INFO] running `Command { std: "docker" "start" "-a" "51c21af24ee577ed543b02c30e30351120ab2d50ef3b609a09e57f9ef48aacc9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `verbose`
[INFO] [stderr]   --> src/truncated_subgroup.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     verbose:                 bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `truncated_free_groups` (lib) generated 1 warning
[INFO] [stderr] warning: `truncated_free_groups` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/truncated_free_groups-289dbba4b90149d1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests truncated_free_groups
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/truncated_group.rs - truncated_group::TruncatedGroup (line 11) ... ok
[INFO] [stdout] test src/truncated_subgroup.rs - truncated_subgroup::TruncatedSubgroup (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "51c21af24ee577ed543b02c30e30351120ab2d50ef3b609a09e57f9ef48aacc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c21af24ee577ed543b02c30e30351120ab2d50ef3b609a09e57f9ef48aacc9", kill_on_drop: false }`
[INFO] [stdout] 51c21af24ee577ed543b02c30e30351120ab2d50ef3b609a09e57f9ef48aacc9