[INFO] fetching crate bdecode 0.1.0...
[INFO] checking bdecode-0.1.0 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate bdecode 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate bdecode 0.1.0 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bdecode 0.1.0
[INFO] finished tweaking crates.io crate bdecode 0.1.0
[INFO] tweaked toml for crates.io crate bdecode 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 102 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.5.1)
[INFO] [stderr]       Adding criterion-cycles-per-byte v0.1.3 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0665c65448fef0b2ad950a98ea6859d22706aa3999258193160dd8d8db0f095b
[INFO] running `Command { std: "docker" "start" "-a" "0665c65448fef0b2ad950a98ea6859d22706aa3999258193160dd8d8db0f095b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0665c65448fef0b2ad950a98ea6859d22706aa3999258193160dd8d8db0f095b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0665c65448fef0b2ad950a98ea6859d22706aa3999258193160dd8d8db0f095b", kill_on_drop: false }`
[INFO] [stdout] 0665c65448fef0b2ad950a98ea6859d22706aa3999258193160dd8d8db0f095b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf5bdcc3b5f040c10aba4590b51423cefd07f07e9fdc715771c3db2e85958780
[INFO] running `Command { std: "docker" "start" "-a" "cf5bdcc3b5f040c10aba4590b51423cefd07f07e9fdc715771c3db2e85958780", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking bdecode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stdout] warning: fields `cached_lookup` and `size` are never read
[INFO] [stdout]    --> src/lib.rs:575:5
[INFO] [stdout]     |
[INFO] [stdout] 564 | pub struct BencodeAny<'a, 't> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 575 |     cached_lookup: Cell<Option<(usize, usize)>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 578 |     size: Cell<Option<usize>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BencodeAny` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking criterion-cycles-per-byte v0.1.3
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/stack_frame.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 |         assert_eq!(mem::size_of::<StackFrame>(), 4);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     unused_qualifications
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 77 -         assert_eq!(mem::size_of::<StackFrame>(), 4);
[INFO] [stdout] 77 +         assert_eq!(size_of::<StackFrame>(), 4);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/token.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |         assert_eq!(mem::size_of::<Token>(), 8);
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 150 -         assert_eq!(mem::size_of::<Token>(), 8);
[INFO] [stdout] 150 +         assert_eq!(size_of::<Token>(), 8);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cached_lookup` and `size` are never read
[INFO] [stdout]    --> src/lib.rs:575:5
[INFO] [stdout]     |
[INFO] [stdout] 564 | pub struct BencodeAny<'a, 't> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 575 |     cached_lookup: Cell<Option<(usize, usize)>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 578 |     size: Cell<Option<usize>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BencodeAny` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bdecode` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "cf5bdcc3b5f040c10aba4590b51423cefd07f07e9fdc715771c3db2e85958780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5bdcc3b5f040c10aba4590b51423cefd07f07e9fdc715771c3db2e85958780", kill_on_drop: false }`
[INFO] [stdout] cf5bdcc3b5f040c10aba4590b51423cefd07f07e9fdc715771c3db2e85958780
