[INFO] fetching crate pledge 0.4.2...
[INFO] testing pledge-0.4.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pledge 0.4.2 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate pledge 0.4.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pledge 0.4.2
[INFO] finished tweaking crates.io crate pledge 0.4.2
[INFO] tweaked toml for crates.io crate pledge 0.4.2 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b7f6473d520136df908799f78e6d73ccef44bdf2b479b4854df248855775600
[INFO] running `Command { std: "docker" "start" "-a" "0b7f6473d520136df908799f78e6d73ccef44bdf2b479b4854df248855775600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b7f6473d520136df908799f78e6d73ccef44bdf2b479b4854df248855775600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7f6473d520136df908799f78e6d73ccef44bdf2b479b4854df248855775600", kill_on_drop: false }`
[INFO] [stdout] 0b7f6473d520136df908799f78e6d73ccef44bdf2b479b4854df248855775600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c543427135acebcb7d2d30918e6d16b4cfd68d6379ad245becb526e709a2107
[INFO] running `Command { std: "docker" "start" "-a" "7c543427135acebcb7d2d30918e6d16b4cfd68d6379ad245becb526e709a2107", kill_on_drop: false }`
[INFO] [stderr]    Compiling pledge v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "7c543427135acebcb7d2d30918e6d16b4cfd68d6379ad245becb526e709a2107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c543427135acebcb7d2d30918e6d16b4cfd68d6379ad245becb526e709a2107", kill_on_drop: false }`
[INFO] [stdout] 7c543427135acebcb7d2d30918e6d16b4cfd68d6379ad245becb526e709a2107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3048843491ec4c890cd0531af016725d66c4d9764d757fae6919dcfb7a934f40
[INFO] running `Command { std: "docker" "start" "-a" "3048843491ec4c890cd0531af016725d66c4d9764d757fae6919dcfb7a934f40", kill_on_drop: false }`
[INFO] [stderr]    Compiling pledge v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pledge`
[INFO] [stdout]    --> src/lib.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |     use super::{pledge, Promise, ToPromiseString};
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToPromiseString`
[INFO] [stdout]    --> src/lib.rs:122:34
[INFO] [stdout]     |
[INFO] [stdout] 122 |     use super::{pledge, Promise, ToPromiseString};
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "3048843491ec4c890cd0531af016725d66c4d9764d757fae6919dcfb7a934f40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3048843491ec4c890cd0531af016725d66c4d9764d757fae6919dcfb7a934f40", kill_on_drop: false }`
[INFO] [stdout] 3048843491ec4c890cd0531af016725d66c4d9764d757fae6919dcfb7a934f40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3229e4b110fac90cd2e26a5f352ff822229f6382839d74ef9c923d451bd5f143
[INFO] running `Command { std: "docker" "start" "-a" "3229e4b110fac90cd2e26a5f352ff822229f6382839d74ef9c923d451bd5f143", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `pledge`
[INFO] [stderr]    --> src/lib.rs:122:17
[INFO] [stderr]     |
[INFO] [stderr] 122 |     use super::{pledge, Promise, ToPromiseString};
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ToPromiseString`
[INFO] [stderr]    --> src/lib.rs:122:34
[INFO] [stderr]     |
[INFO] [stderr] 122 |     use super::{pledge, Promise, ToPromiseString};
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `pledge` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pledge-af36f332c63b2db8)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_pledge_unsupported ... ok
[INFO] [stdout] test tests::test_promise_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pledge
[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] running `Command { std: "docker" "inspect" "3229e4b110fac90cd2e26a5f352ff822229f6382839d74ef9c923d451bd5f143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3229e4b110fac90cd2e26a5f352ff822229f6382839d74ef9c923d451bd5f143", kill_on_drop: false }`
[INFO] [stdout] 3229e4b110fac90cd2e26a5f352ff822229f6382839d74ef9c923d451bd5f143