[INFO] fetching crate nbformat 0.12.0...
[INFO] checking nbformat-0.12.0 against master#040e2f8b9ff2d76fbe2146d6003e297ed4532088 for pr-143619
[INFO] extracting crate nbformat 0.12.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate nbformat 0.12.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate nbformat 0.12.0
[INFO] tweaked toml for crates.io crate nbformat 0.12.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nbformat 0.12.0 on toolchain 040e2f8b9ff2d76fbe2146d6003e297ed4532088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+040e2f8b9ff2d76fbe2146d6003e297ed4532088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nbformat 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+040e2f8b9ff2d76fbe2146d6003e297ed4532088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jupyter-protocol v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+040e2f8b9ff2d76fbe2146d6003e297ed4532088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd2ec5e5173afc2f0abae49c8e360d7e1fdcf005fb15692bdd442bb28fd81f5b
[INFO] running `Command { std: "docker" "start" "-a" "cd2ec5e5173afc2f0abae49c8e360d7e1fdcf005fb15692bdd442bb28fd81f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd2ec5e5173afc2f0abae49c8e360d7e1fdcf005fb15692bdd442bb28fd81f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2ec5e5173afc2f0abae49c8e360d7e1fdcf005fb15692bdd442bb28fd81f5b", kill_on_drop: false }`
[INFO] [stdout] cd2ec5e5173afc2f0abae49c8e360d7e1fdcf005fb15692bdd442bb28fd81f5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+040e2f8b9ff2d76fbe2146d6003e297ed4532088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac83430171af087dc1d2783d53bd8aee2f16d187480da427dbf065fa92a1661a
[INFO] running `Command { std: "docker" "start" "-a" "ac83430171af087dc1d2783d53bd8aee2f16d187480da427dbf065fa92a1661a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking sha1_smol v1.0.1
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking uuid v1.17.0
[INFO] [stderr]     Checking jupyter-protocol v0.8.0
[INFO] [stderr]     Checking nbformat v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.18s
[INFO] running `Command { std: "docker" "inspect" "ac83430171af087dc1d2783d53bd8aee2f16d187480da427dbf065fa92a1661a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac83430171af087dc1d2783d53bd8aee2f16d187480da427dbf065fa92a1661a", kill_on_drop: false }`
[INFO] [stdout] ac83430171af087dc1d2783d53bd8aee2f16d187480da427dbf065fa92a1661a