[INFO] fetching crate log 0.4.20...
[INFO] checking log-0.4.20 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate log 0.4.20 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate log 0.4.20 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log 0.4.20
[INFO] removed 2 missing tests
[INFO] finished tweaking crates.io crate log 0.4.20
[INFO] tweaked toml for crates.io crate log 0.4.20 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sval_serde v2.11.1
[INFO] [stderr]   Downloaded value-bag-sval2 v1.8.1
[INFO] [stderr]   Downloaded sval_ref v2.11.1
[INFO] [stderr]   Downloaded value-bag v1.8.1
[INFO] [stderr]   Downloaded serde_test v1.0.176
[INFO] [stderr]   Downloaded sval_derive_macros v2.11.1
[INFO] [stderr]   Downloaded sval_derive v2.11.1
[INFO] [stderr]   Downloaded erased-serde v0.4.4
[INFO] [stderr]   Downloaded serde_fmt v1.0.3
[INFO] [stderr]   Downloaded value-bag-serde1 v1.8.1
[INFO] [stderr]   Downloaded sval_dynamic v2.11.1
[INFO] [stderr]   Downloaded sval_fmt v2.11.1
[INFO] [stderr]   Downloaded sval_json v2.11.1
[INFO] [stderr]   Downloaded sval_buffer v2.11.1
[INFO] [stderr]   Downloaded sval v2.11.1
[INFO] [stderr]   Downloaded sval_nested v2.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26569b9293139b773f6f9ac288854c02c643f831d624e589b933cd1998e559fb
[INFO] running `Command { std: "docker" "start" "-a" "26569b9293139b773f6f9ac288854c02c643f831d624e589b933cd1998e559fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26569b9293139b773f6f9ac288854c02c643f831d624e589b933cd1998e559fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26569b9293139b773f6f9ac288854c02c643f831d624e589b933cd1998e559fb", kill_on_drop: false }`
[INFO] [stdout] 26569b9293139b773f6f9ac288854c02c643f831d624e589b933cd1998e559fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7dbba4e0e8b3a5ddeae352467f21a1390c7256f59f3bab68e3885c123462685
[INFO] running `Command { std: "docker" "start" "-a" "d7dbba4e0e8b3a5ddeae352467f21a1390c7256f59f3bab68e3885c123462685", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking value-bag v1.8.1
[INFO] [stderr]     Checking sval v2.11.1
[INFO] [stderr]     Checking log v0.4.20 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling sval_derive_macros v2.11.1
[INFO] [stderr]     Checking sval_derive v2.11.1
[INFO] [stderr]     Checking serde_test v1.0.176
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1542:9
[INFO] [stdout]      |
[INFO] [stdout] 1542 |     use tests::std::string::ToString;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     --> /rustc/020bbe46bdf613c0b8211984eaa8e5fe97d6c92d/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]      |
[INFO] [stdout]      = note: the item `ToString` is already defined here
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.13s
[INFO] running `Command { std: "docker" "inspect" "d7dbba4e0e8b3a5ddeae352467f21a1390c7256f59f3bab68e3885c123462685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7dbba4e0e8b3a5ddeae352467f21a1390c7256f59f3bab68e3885c123462685", kill_on_drop: false }`
[INFO] [stdout] d7dbba4e0e8b3a5ddeae352467f21a1390c7256f59f3bab68e3885c123462685
[INFO] checking log-0.4.20 against try#8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde for pr-122960
[INFO] extracting crate log 0.4.20 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate log 0.4.20 on toolchain 8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log 0.4.20
[INFO] removed 2 missing tests
[INFO] finished tweaking crates.io crate log 0.4.20
[INFO] tweaked toml for crates.io crate log 0.4.20 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76b51868e3526b70a55f67f339776867c8052fb0739b92ca5570d2b1d9d84072
[INFO] running `Command { std: "docker" "start" "-a" "76b51868e3526b70a55f67f339776867c8052fb0739b92ca5570d2b1d9d84072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b51868e3526b70a55f67f339776867c8052fb0739b92ca5570d2b1d9d84072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b51868e3526b70a55f67f339776867c8052fb0739b92ca5570d2b1d9d84072", kill_on_drop: false }`
[INFO] [stdout] 76b51868e3526b70a55f67f339776867c8052fb0739b92ca5570d2b1d9d84072
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8e5ca945edcf8a11e3cd7ac6d9fda930a8832cde" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 495dc97ff3618516ebff015f53e40c873a95e1d7ccd729c10f2e4724b464007e
[INFO] running `Command { std: "docker" "start" "-a" "495dc97ff3618516ebff015f53e40c873a95e1d7ccd729c10f2e4724b464007e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "495dc97ff3618516ebff015f53e40c873a95e1d7ccd729c10f2e4724b464007e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "495dc97ff3618516ebff015f53e40c873a95e1d7ccd729c10f2e4724b464007e", kill_on_drop: false }`
[INFO] [stdout] 495dc97ff3618516ebff015f53e40c873a95e1d7ccd729c10f2e4724b464007e