[INFO] fetching crate linked-list 0.0.3...
[INFO] testing linked-list-0.0.3 against 1.59.0 for beta-1.60-1
[INFO] extracting crate linked-list 0.0.3 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate linked-list 0.0.3 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linked-list 0.0.3
[INFO] finished tweaking crates.io crate linked-list 0.0.3
[INFO] tweaked toml for crates.io crate linked-list 0.0.3 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 922576f857e433daafd27f284ce176354dad8e4f8dc5abe60e5bffc83f5cfbf6
[INFO] running `Command { std: "docker" "start" "-a" "922576f857e433daafd27f284ce176354dad8e4f8dc5abe60e5bffc83f5cfbf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "922576f857e433daafd27f284ce176354dad8e4f8dc5abe60e5bffc83f5cfbf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "922576f857e433daafd27f284ce176354dad8e4f8dc5abe60e5bffc83f5cfbf6", kill_on_drop: false }`
[INFO] [stdout] 922576f857e433daafd27f284ce176354dad8e4f8dc5abe60e5bffc83f5cfbf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a68b3c9d48d496aec9d9b87791c76cbd4fe2d7928befb34a19841305c5a3b46d
[INFO] running `Command { std: "docker" "start" "-a" "a68b3c9d48d496aec9d9b87791c76cbd4fe2d7928befb34a19841305c5a3b46d", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked-list v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Debug`
[INFO] [stdout]   --> src/lib.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fmt::{self, Debug};
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |         try!(write!(f, "["));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:773:13
[INFO] [stdout]     |
[INFO] [stdout] 773 |             try!(write!(f, "{:?}", *e));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:772:25
[INFO] [stdout]     |
[INFO] [stdout] 772 |             if i != 0 { try!(write!(f, ", ")); }
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "a68b3c9d48d496aec9d9b87791c76cbd4fe2d7928befb34a19841305c5a3b46d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a68b3c9d48d496aec9d9b87791c76cbd4fe2d7928befb34a19841305c5a3b46d", kill_on_drop: false }`
[INFO] [stdout] a68b3c9d48d496aec9d9b87791c76cbd4fe2d7928befb34a19841305c5a3b46d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b1360c51bb8a1a30d8164a1f6b0dcf7a08516ed8c2808e0bdfcc8e3c3793b06
[INFO] running `Command { std: "docker" "start" "-a" "7b1360c51bb8a1a30d8164a1f6b0dcf7a08516ed8c2808e0bdfcc8e3c3793b06", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Debug`
[INFO] [stdout]   --> src/lib.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fmt::{self, Debug};
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |         try!(write!(f, "["));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:773:13
[INFO] [stdout]     |
[INFO] [stdout] 773 |             try!(write!(f, "{:?}", *e));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:772:25
[INFO] [stdout]     |
[INFO] [stdout] 772 |             if i != 0 { try!(write!(f, ", ")); }
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling linked-list v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Debug`
[INFO] [stdout]   --> src/lib.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fmt::{self, Debug};
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |         try!(write!(f, "["));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:773:13
[INFO] [stdout]     |
[INFO] [stdout] 773 |             try!(write!(f, "{:?}", *e));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:772:25
[INFO] [stdout]     |
[INFO] [stdout] 772 |             if i != 0 { try!(write!(f, ", ")); }
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "7b1360c51bb8a1a30d8164a1f6b0dcf7a08516ed8c2808e0bdfcc8e3c3793b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b1360c51bb8a1a30d8164a1f6b0dcf7a08516ed8c2808e0bdfcc8e3c3793b06", kill_on_drop: false }`
[INFO] [stdout] 7b1360c51bb8a1a30d8164a1f6b0dcf7a08516ed8c2808e0bdfcc8e3c3793b06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4f0828553a92b984557b49ecfb4d1a5bec8ab24b36d053bbfaa10415789e24e7
[INFO] running `Command { std: "docker" "start" "-a" "4f0828553a92b984557b49ecfb4d1a5bec8ab24b36d053bbfaa10415789e24e7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Debug`
[INFO] [stderr]   --> src/lib.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::fmt::{self, Debug};
[INFO] [stderr]    |                      ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:769:9
[INFO] [stderr]     |
[INFO] [stderr] 769 |         try!(write!(f, "["));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:773:13
[INFO] [stderr]     |
[INFO] [stderr] 773 |             try!(write!(f, "{:?}", *e));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:772:25
[INFO] [stderr]     |
[INFO] [stderr] 772 |             if i != 0 { try!(write!(f, ", ")); }
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `linked-list` (lib) generated 4 warnings
[INFO] [stderr] warning: `linked-list` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked_list-e8823f3fc08d49a7)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::test_append ... ok
[INFO] [stdout] test tests::test_basic ... ok
[INFO] [stdout] test tests::test_cursor_insert ... ok
[INFO] [stdout] test tests::test_cursor_remove ... ok
[INFO] [stdout] test tests::test_cursor_seek ... ok
[INFO] [stdout] test tests::test_debug ... ok
[INFO] [stdout] test tests::test_eq ... ok
[INFO] [stdout] test tests::test_iterator ... ok
[INFO] [stdout] test tests::test_iterator_mut_double_end ... ok
[INFO] [stdout] test tests::test_iterator_double_end ... ok
[INFO] [stdout] test tests::test_mut_iter ... ok
[INFO] [stdout] test tests::test_ord ... ok
[INFO] [stdout] test tests::test_ord_nan ... ok
[INFO] [stdout] test tests::test_rev_iter ... ok
[INFO] [stdout] test tests::test_splice ... ok
[INFO] [stdout] test tests::test_split_at ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests linked-list
[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" "4f0828553a92b984557b49ecfb4d1a5bec8ab24b36d053bbfaa10415789e24e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0828553a92b984557b49ecfb4d1a5bec8ab24b36d053bbfaa10415789e24e7", kill_on_drop: false }`
[INFO] [stdout] 4f0828553a92b984557b49ecfb4d1a5bec8ab24b36d053bbfaa10415789e24e7