[INFO] fetching crate truncated_free_groups 0.1.0...
[INFO] testing truncated_free_groups-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate truncated_free_groups 0.1.0 into /workspace/builds/worker-7-tc2/source
[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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate truncated_free_groups 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b89f916c1c31913d4f9d6d40dc6363663ab55eaba42a3fa43a743b617c318b6e
[INFO] running `Command { std: "docker" "start" "-a" "b89f916c1c31913d4f9d6d40dc6363663ab55eaba42a3fa43a743b617c318b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b89f916c1c31913d4f9d6d40dc6363663ab55eaba42a3fa43a743b617c318b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89f916c1c31913d4f9d6d40dc6363663ab55eaba42a3fa43a743b617c318b6e", kill_on_drop: false }`
[INFO] [stdout] b89f916c1c31913d4f9d6d40dc6363663ab55eaba42a3fa43a743b617c318b6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3d9b926b04f960f2fd34d638b07798a5bdbd639a3c7fa6f02b9676c590e0302
[INFO] running `Command { std: "docker" "start" "-a" "e3d9b926b04f960f2fd34d638b07798a5bdbd639a3c7fa6f02b9676c590e0302", 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 `verbose` is never read
[INFO] [stdout]   --> src/truncated_subgroup.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct TruncatedSubgroup {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 44 |     verbose:                 bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TruncatedSubgroup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "e3d9b926b04f960f2fd34d638b07798a5bdbd639a3c7fa6f02b9676c590e0302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3d9b926b04f960f2fd34d638b07798a5bdbd639a3c7fa6f02b9676c590e0302", kill_on_drop: false }`
[INFO] [stdout] e3d9b926b04f960f2fd34d638b07798a5bdbd639a3c7fa6f02b9676c590e0302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5620d42ebac34625f8d9570702d14d286a950144a79f1ee6f8f105dcf69d981
[INFO] running `Command { std: "docker" "start" "-a" "a5620d42ebac34625f8d9570702d14d286a950144a79f1ee6f8f105dcf69d981", kill_on_drop: false }`
[INFO] [stderr]    Compiling truncated_free_groups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `verbose` is never read
[INFO] [stdout]   --> src/truncated_subgroup.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct TruncatedSubgroup {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 44 |     verbose:                 bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TruncatedSubgroup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `verbose` is never read
[INFO] [stdout]   --> src/truncated_subgroup.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct TruncatedSubgroup {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 44 |     verbose:                 bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TruncatedSubgroup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "a5620d42ebac34625f8d9570702d14d286a950144a79f1ee6f8f105dcf69d981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5620d42ebac34625f8d9570702d14d286a950144a79f1ee6f8f105dcf69d981", kill_on_drop: false }`
[INFO] [stdout] a5620d42ebac34625f8d9570702d14d286a950144a79f1ee6f8f105dcf69d981
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92e3a55c9ae473e22507d02b786b8fb0aa60fbec7d8844de62dec94f0ce6658d
[INFO] running `Command { std: "docker" "start" "-a" "92e3a55c9ae473e22507d02b786b8fb0aa60fbec7d8844de62dec94f0ce6658d", kill_on_drop: false }`
[INFO] [stdout] 
[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] [stderr] warning: field `verbose` is never read
[INFO] [stderr]   --> src/truncated_subgroup.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub struct TruncatedSubgroup {
[INFO] [stderr]    |            ----------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 44 |     verbose:                 bool,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TruncatedSubgroup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/truncated_free_groups-c7ca0bba3603846d)
[INFO] [stderr]    Doc-tests truncated_free_groups
[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 0.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92e3a55c9ae473e22507d02b786b8fb0aa60fbec7d8844de62dec94f0ce6658d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e3a55c9ae473e22507d02b786b8fb0aa60fbec7d8844de62dec94f0ce6658d", kill_on_drop: false }`
[INFO] [stdout] 92e3a55c9ae473e22507d02b786b8fb0aa60fbec7d8844de62dec94f0ce6658d