[INFO] fetching crate ibm437 0.3.2...
[INFO] checking ibm437-0.3.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ibm437 0.3.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ibm437 0.3.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibm437 0.3.2
[INFO] finished tweaking crates.io crate ibm437 0.3.2
[INFO] tweaked toml for crates.io crate ibm437 0.3.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate ibm437 0.3.2 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded weezl v0.1.6
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.8
[INFO] [stderr]   Downloaded gif v0.11.3
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[INFO] [stderr]   Downloaded criterion-plot v0.4.4
[INFO] [stderr]   Downloaded bitvec v1.0.0
[INFO] [stderr]   Downloaded embedded-graphics-core v0.3.3
[INFO] [stderr]   Downloaded criterion v0.3.5
[INFO] [stderr]   Downloaded az v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0303f4a44c65ce0046f3446930671be5d8edae3eb0207bfbf33576b036ecd469
[INFO] running `Command { std: "docker" "start" "-a" "0303f4a44c65ce0046f3446930671be5d8edae3eb0207bfbf33576b036ecd469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0303f4a44c65ce0046f3446930671be5d8edae3eb0207bfbf33576b036ecd469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0303f4a44c65ce0046f3446930671be5d8edae3eb0207bfbf33576b036ecd469", kill_on_drop: false }`
[INFO] [stdout] 0303f4a44c65ce0046f3446930671be5d8edae3eb0207bfbf33576b036ecd469
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a91804e28a0dcb0aa369616881f38d4c59861068d83d3a6cd3153f4d7a34ec
[INFO] running `Command { std: "docker" "start" "-a" "63a91804e28a0dcb0aa369616881f38d4c59861068d83d3a6cd3153f4d7a34ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.3
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[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking weezl v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
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[INFO] [stderr]    Compiling rand_pcg v0.1.2
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[INFO] [stderr]     Checking crossbeam-deque v0.8.1
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[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling serde_json v1.0.81
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[INFO] [stderr]    Compiling png v0.17.5
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[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking embedded-graphics v0.7.1
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[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling ibm437 v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `png` is imported redundantly
[INFO] [stdout]  --> src/build.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use png;
[INFO] [stdout]   |     ^^^ the item `png` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking embedded-graphics-simulator v0.3.0
[INFO] [stdout] warning: unused import: `super::char_offset_impl`
[INFO] [stdout]    --> benches/../src/char_offset.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     use super::char_offset_impl;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]    --> benches/../src/char_offset.rs:99:1
[INFO] [stdout]     |
[INFO] [stdout] 99  | mod char_offset_test {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHARS_PER_ROW` is never used
[INFO] [stdout]  --> benches/../src/char_offset.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const CHARS_PER_ROW: usize = 16;
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> benches/../src/char_offset.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(dead_code)]
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "63a91804e28a0dcb0aa369616881f38d4c59861068d83d3a6cd3153f4d7a34ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a91804e28a0dcb0aa369616881f38d4c59861068d83d3a6cd3153f4d7a34ec", kill_on_drop: false }`
[INFO] [stdout] 63a91804e28a0dcb0aa369616881f38d4c59861068d83d3a6cd3153f4d7a34ec